קפיץ מחזיר ב1911 קצרים
המנהלים: yoramhai, donduck, שרקן
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קפיץ מחזיר ב1911 קצרים
יש לי כמה שאלות בנושא קפיץ מחזיר לאקדח שברשותי
פארא P12 0.45
לאחר התקנת קפיץ מחזיר סטנדרטי - 22# חדש וייעודי לנשק שלי.
התוצאה היא שהאקדח קופץ מאוד-מאוד חזק כלפי מעלה,
בהשוואה למצב שהיה קודם עם הקפיץ שאינני יודע את חוזקו.
(הפארא הפך לפר...
)
עם זאת האקדח יורה בסדר גמור,
אין בעיות הזנה או פליטה.
ולא הבחנתי בשום בעיה או תקלה.
(באקדח שלי מותקן גם שוק-באפר)
שלוש שאלות:
1. האם הפחתת משקל הקפיץ מתחת ל 22#
תגרום לנזק באקדח?
האם שוק-באפר יכול לכפר על נזק כתוצאה מהפחתת משקל הקפיץ?
2. יחד עם הקפיצים שקניתי קיבלתי קפיץ נוקר אחר,
ארוך וחזק יותר מהמקורי שישנו אצלי (גם הוא חדש)
האם יש סיבה להחליף את קפיץ הנוקר גם כן?
מהו הקשר בין קפיץ הנוקר וקפיץ המחזיר?
3. האם יכול להיות שזה בגלל שהקפיץ הנו חדש, ולאחר "הרצה" הקפיצה
תהיה פחות מורגשת? או שזה לא ככה?
תודה!!
עמרי.
פארא P12 0.45
לאחר התקנת קפיץ מחזיר סטנדרטי - 22# חדש וייעודי לנשק שלי.
התוצאה היא שהאקדח קופץ מאוד-מאוד חזק כלפי מעלה,
בהשוואה למצב שהיה קודם עם הקפיץ שאינני יודע את חוזקו.
(הפארא הפך לפר...
)
עם זאת האקדח יורה בסדר גמור,
אין בעיות הזנה או פליטה.
ולא הבחנתי בשום בעיה או תקלה.
(באקדח שלי מותקן גם שוק-באפר)
שלוש שאלות:
1. האם הפחתת משקל הקפיץ מתחת ל 22#
תגרום לנזק באקדח?
האם שוק-באפר יכול לכפר על נזק כתוצאה מהפחתת משקל הקפיץ?
2. יחד עם הקפיצים שקניתי קיבלתי קפיץ נוקר אחר,
ארוך וחזק יותר מהמקורי שישנו אצלי (גם הוא חדש)
האם יש סיבה להחליף את קפיץ הנוקר גם כן?
מהו הקשר בין קפיץ הנוקר וקפיץ המחזיר?
3. האם יכול להיות שזה בגלל שהקפיץ הנו חדש, ולאחר "הרצה" הקפיצה
תהיה פחות מורגשת? או שזה לא ככה?
תודה!!
עמרי.
-
- תרמתי למען הסליק
- הודעות: 930
- הצטרף: 18 נובמבר 2005, 16:14
מצטער על אורך הכתבה, יש כאן מידע שיכול לעזור. מעט סבלנות.
1911 Auto Recoil Spring Compression Weights
by: Dave Koebensky of W.C. Wolff Co. & Brownells GunTechs
A certain amount of confusion exists when it comes to the subject of recoil springs for the 1911 Auto. Alterations to the gun which involve changing the weight of its recoiling mass will often require a change in the recoil spring weight, as will major changes in the ammunition being fired.
Just what constitutes a recoil springâs weight? The amount of energy stored by a conventionally-wound spring as it is compressed changes value in a straight line. For example, if you compress a conventional spring an inch, it may store a pound of energy. Compressing it another inch will store an additional pound of energy. At three inches we would have 3 pounds of energy stored.
A variable-weight spring works differently. The amount of energy stored for each increment of compression changes on a curve. As an example, compressing a variable weight spring one inch may store 4 ounces of energy, another one inch will store an additional 8 ounces of energy, the third inch will add another 12 ounces, and so on. A conventional 16 pound recoil spring and a variable 16 pound recoil spring will both store 16 pounds of energy but they get to that point at different rates. Â While 1911 Auto recoil springs are available in a variety of weights, 16 pounds is considered the standard for full-size guns with 5" barrels. Just how is this figure of 16 pounds determined? In full recoil, the space available for the recoil spring to occupy is 1.625". At this point in its compression, its stored energy is 16 pounds. A 15 pound spring would store 15 pounds of energy when compressed to 1.625", etc.
SDM Recoil Spring Tester
Similar pistols but with shorter slides, such as Commander or Officerâs ACP-length models, require springs that are not only shorter, but have different compression weights. A standard Commander spring is 18 pounds when compressed to 1.125", while the Officers ACP spring system must store 22 pounds of energy when compressed to .700". The free length prior to compression is not all that important, as long as it fits within the available space.
 These figures should explain why the shooter cannot take an 18 pound full-size Government model recoil spring and shorten it and expect it to function the same as a standard 18 pound spring in his Commander-length pistol.
Just what weight of spring should be used? As mentioned at the beginning, changes in the weight of the slide and barrel combination, addition of barrel weights or compensators, optical sights attached directly to the slide, or changes to the ballistics of your ammunition may require a change in spring weight. The rule of thumb is to use the heaviest spring available while maintaining reliable function. A fair indicator is how far from the shooter the ejected cases land. Less than three feet may indicate the need for a lighter spring, while more than six feet may indicate the need for a heavier spring. Keep in mind that too light a spring may result in damage to your pistol.
ועוד מידע.
Guns Springs FAQ
(courtesy of Wolff Gunsprings)
--------------------------------------------------------------------------------
1. What is the difference between conventional and variable recoil springs?
2. Should I use a conventional or variable spring when both are available?
3. How heavy should my recoil spring be?
4. What weight recoil spring should I use with a particular load?
5. How often should I change my springs?
6. Should I unload my magazines, rotate magazines, load with fewer rounds?
7. How often should I change magazine springs?
8. My spring got shorter after I used it for a short time. Is it bad?
9. My lighter spring is longer than the heavier spring for the same gun. Is this a problem?
10. The spring I purchased is longer than the original spring so I don't think it will fit.
--------------------------------------------------------------------------------
1. What is the difference between conventional and variable recoil springs?
The difference is both physical and operational. On a conventional spring, all the coils are spaced equally apart, except for the closed ends. In a variable recoil spring the space varies between coils with less space between coils at one end and more space between coils at the other end. The way the springs store energy is also different. For example if a conventional recoil spring is compressed 1/2", it might store 1 pound of energy. For every additional 1/2" this spring is compressed it would then store 1 additional pound of energy. When a variable recoil spring is compressed 1/2", it might store 1/4 pound of energy. The next half inch of compression might store 1/2 pound, the next half inch might store 3/4 pound and so on. In other words, a conventional spring stores energy on a straight line and a variable spring stores energy on a curve. If both springs are rated at 16 pounds, they will both store 16 pounds when compressed to the same working length, but the way they get to 16 pounds is different.
2. Should I use a conventional or variable spring when both are available?
The choice is often very subjective. Variable recoil springs reduce the battery load values with increasingly greater recoil load values. This results in easier unlocking, improved recoil energy storage, dampening, feeding, breaching and lockup. Variable recoil springs are particularly beneficial with compensated pistols and when using light target loads where less recoil energy is available. Conventional recoil springs are particularly beneficial when shooting heavier loads where keeping the slide closed as long as possible is desired. The "correct type" of recoil spring is best determined through experimentation and your own personal preference.
3. How heavy should my recoil spring be? What weight recoil spring should I use with a particular load?
These are two very hard questions to answer in exact terms and in most cases an exact answer is not possible. There are many factors which influence the correct weight recoil spring to use. These factors include the particular ammunition brand and load, individual pistol characteristics, individual shooting styles and your individual, subjective feeling of how the gun shoots and should feel. In general terms, the heaviest recoil spring that will allow the pistol to function reliably is the best choice - tempered by the above factors. If your casings are hitting the ground in the 3 to 6 foot range, then the recoil spring is approximately correct. If you are ejecting beyond the 6-8 foot range, then a heavier recoil spring is generally required. If your casings are ejecting less than 3 feet a lighter recoil spring may be needed to assure proper functioning. Taking these factors into consideration, it then comes down to how the gun feels and performs when shooting - in your judgment. Using too light a recoil spring can result in damage to the pistol and possible injury to you.
4. How often should I change my springs?
Wolff Gunsprings are made with the highest grade materials and workmanship. Most Wolff [recoil] springs will remain stable for many thousands of rounds. The performance of your gun is the best indicator of when a spring needs to be replaced. Factors such as increasing ejection distance, improper ejection and/or breaching, lighter hammer indents on primers, misfires, poor cartridge feeding from magazines, frequent jams, stove pipes and other malfunctions are all possible indications of fatigued springs or improper springs. Springs that are subject to higher stress applications such as magazine springs, striker springs and recoil springs will require more frequent replacement than other less stressed springs. Most Wolff recoil springs should be capable of 3000-5000 rounds minimum before changing is required. Some recoil springs in compact pistols, especially where dual springs are replaced by a single spring may require changing after 750 - 1500 rounds. Changes in your firearm's performance are one of the best indicators that a change is needed.
5. Should I unload my magazines, rotate magazines, load with fewer than the maximum rounds? How often should I change magazine springs?
Magazine springs in semi-auto pistols are one of the most critical springs and the subject of much debate and concern. Magazines which are kept fully loaded for long periods of time, such as law enforcement applications, will generally be subject to more fatigue than the weekend shooter's magazine springs which are loaded up only when shooting. Magazine design and capacity also affect the longevity of the spring. Older designs where maximum capacity was not the goal such as the 7 round 1911 Colt magazines will last for years fully loaded. There was a lot of room for a lot of spring which reduced the overall stress on the spring. In recent hi-capacity magazines, the magazines were designed to hold more rounds with less spring material. This puts more stress on the spring and will cause fatigue at a faster rate. Unloading these magazines a round or two will help the life of the spring. Rotating fully loaded magazines will also help the problem somewhat but is not always practical. In applications where the magazine must be kept loaded, a high quality magazine spring such as Wolff extra power magazine springs, will provide maximum life. Regular shooting will verify reliability and regular replacement of magazine springs will provide the best defense against failure from weak magazine springs.
6. My spring got shorter after I used it for a short time. Is it bad?
Most new springs will take a set when they are first compressed. That means they will shorten up. This is a normal event and you should not be immediately alarmed. The greater the stress on the spring, generally the more set that will occur. All Wolff springs take this set into consideration. The ratings of the springs you receive are the ratings after the set has occurred. After set has taken place, the spring should remain essentially stable.
7. My lighter [recoil] spring is longer than the heavier spring for the same gun. Is this a problem?
Wolff offers many springs in different weights for the same use. Factors such as the size of the wire, the number of coils, the outside diameter of the spring as well as the free length determine the strength of a particular spring. Often, lighter springs are longer than heavier springs because lighter wires and/or a different number of coils are used. Free length is then adjusted to achieve the exact strength desired.
8. The spring I purchased is longer than the original spring so I don't think it will fit.
The free length of a spring is not the most important factor in determining whether a spring will fit. Many Wolff springs are longer than factory springs. This is normal and the spring will fit. A more important factor in determining whether a spring will fit is the number of coils in the spring times the diameter of the wire. For example, take 2 springs - one is 7 inches long and the other is 4 inches long. If both springs contain the same number of coils and use the same size wire, both springs will compress to the same solid lengths. The strengths will however be quite different.
Copyright © 1997-1998 W. C. Wolff Company
All rights reserved.
W. C. Wolff Company online publications are intended for the use of W. C. Wolff Company customers for the purposes of researching and purchasing products offered for sale by W. C. Wolff Company. This publication may not be copied, duplicated, modified or redistributed in whole or part without the prior written permission of W. C. Wolff Company.
Copying of this material, in the M-1911 Pistols Home Page has been permitted by
W. C. Wolff Company.
1911 Auto Recoil Spring Compression Weights
by: Dave Koebensky of W.C. Wolff Co. & Brownells GunTechs
A certain amount of confusion exists when it comes to the subject of recoil springs for the 1911 Auto. Alterations to the gun which involve changing the weight of its recoiling mass will often require a change in the recoil spring weight, as will major changes in the ammunition being fired.
Just what constitutes a recoil springâs weight? The amount of energy stored by a conventionally-wound spring as it is compressed changes value in a straight line. For example, if you compress a conventional spring an inch, it may store a pound of energy. Compressing it another inch will store an additional pound of energy. At three inches we would have 3 pounds of energy stored.
A variable-weight spring works differently. The amount of energy stored for each increment of compression changes on a curve. As an example, compressing a variable weight spring one inch may store 4 ounces of energy, another one inch will store an additional 8 ounces of energy, the third inch will add another 12 ounces, and so on. A conventional 16 pound recoil spring and a variable 16 pound recoil spring will both store 16 pounds of energy but they get to that point at different rates. Â While 1911 Auto recoil springs are available in a variety of weights, 16 pounds is considered the standard for full-size guns with 5" barrels. Just how is this figure of 16 pounds determined? In full recoil, the space available for the recoil spring to occupy is 1.625". At this point in its compression, its stored energy is 16 pounds. A 15 pound spring would store 15 pounds of energy when compressed to 1.625", etc.
SDM Recoil Spring Tester
Similar pistols but with shorter slides, such as Commander or Officerâs ACP-length models, require springs that are not only shorter, but have different compression weights. A standard Commander spring is 18 pounds when compressed to 1.125", while the Officers ACP spring system must store 22 pounds of energy when compressed to .700". The free length prior to compression is not all that important, as long as it fits within the available space.
 These figures should explain why the shooter cannot take an 18 pound full-size Government model recoil spring and shorten it and expect it to function the same as a standard 18 pound spring in his Commander-length pistol.
Just what weight of spring should be used? As mentioned at the beginning, changes in the weight of the slide and barrel combination, addition of barrel weights or compensators, optical sights attached directly to the slide, or changes to the ballistics of your ammunition may require a change in spring weight. The rule of thumb is to use the heaviest spring available while maintaining reliable function. A fair indicator is how far from the shooter the ejected cases land. Less than three feet may indicate the need for a lighter spring, while more than six feet may indicate the need for a heavier spring. Keep in mind that too light a spring may result in damage to your pistol.
ועוד מידע.
Guns Springs FAQ
(courtesy of Wolff Gunsprings)
--------------------------------------------------------------------------------
1. What is the difference between conventional and variable recoil springs?
2. Should I use a conventional or variable spring when both are available?
3. How heavy should my recoil spring be?
4. What weight recoil spring should I use with a particular load?
5. How often should I change my springs?
6. Should I unload my magazines, rotate magazines, load with fewer rounds?
7. How often should I change magazine springs?
8. My spring got shorter after I used it for a short time. Is it bad?
9. My lighter spring is longer than the heavier spring for the same gun. Is this a problem?
10. The spring I purchased is longer than the original spring so I don't think it will fit.
--------------------------------------------------------------------------------
1. What is the difference between conventional and variable recoil springs?
The difference is both physical and operational. On a conventional spring, all the coils are spaced equally apart, except for the closed ends. In a variable recoil spring the space varies between coils with less space between coils at one end and more space between coils at the other end. The way the springs store energy is also different. For example if a conventional recoil spring is compressed 1/2", it might store 1 pound of energy. For every additional 1/2" this spring is compressed it would then store 1 additional pound of energy. When a variable recoil spring is compressed 1/2", it might store 1/4 pound of energy. The next half inch of compression might store 1/2 pound, the next half inch might store 3/4 pound and so on. In other words, a conventional spring stores energy on a straight line and a variable spring stores energy on a curve. If both springs are rated at 16 pounds, they will both store 16 pounds when compressed to the same working length, but the way they get to 16 pounds is different.
2. Should I use a conventional or variable spring when both are available?
The choice is often very subjective. Variable recoil springs reduce the battery load values with increasingly greater recoil load values. This results in easier unlocking, improved recoil energy storage, dampening, feeding, breaching and lockup. Variable recoil springs are particularly beneficial with compensated pistols and when using light target loads where less recoil energy is available. Conventional recoil springs are particularly beneficial when shooting heavier loads where keeping the slide closed as long as possible is desired. The "correct type" of recoil spring is best determined through experimentation and your own personal preference.
3. How heavy should my recoil spring be? What weight recoil spring should I use with a particular load?
These are two very hard questions to answer in exact terms and in most cases an exact answer is not possible. There are many factors which influence the correct weight recoil spring to use. These factors include the particular ammunition brand and load, individual pistol characteristics, individual shooting styles and your individual, subjective feeling of how the gun shoots and should feel. In general terms, the heaviest recoil spring that will allow the pistol to function reliably is the best choice - tempered by the above factors. If your casings are hitting the ground in the 3 to 6 foot range, then the recoil spring is approximately correct. If you are ejecting beyond the 6-8 foot range, then a heavier recoil spring is generally required. If your casings are ejecting less than 3 feet a lighter recoil spring may be needed to assure proper functioning. Taking these factors into consideration, it then comes down to how the gun feels and performs when shooting - in your judgment. Using too light a recoil spring can result in damage to the pistol and possible injury to you.
4. How often should I change my springs?
Wolff Gunsprings are made with the highest grade materials and workmanship. Most Wolff [recoil] springs will remain stable for many thousands of rounds. The performance of your gun is the best indicator of when a spring needs to be replaced. Factors such as increasing ejection distance, improper ejection and/or breaching, lighter hammer indents on primers, misfires, poor cartridge feeding from magazines, frequent jams, stove pipes and other malfunctions are all possible indications of fatigued springs or improper springs. Springs that are subject to higher stress applications such as magazine springs, striker springs and recoil springs will require more frequent replacement than other less stressed springs. Most Wolff recoil springs should be capable of 3000-5000 rounds minimum before changing is required. Some recoil springs in compact pistols, especially where dual springs are replaced by a single spring may require changing after 750 - 1500 rounds. Changes in your firearm's performance are one of the best indicators that a change is needed.
5. Should I unload my magazines, rotate magazines, load with fewer than the maximum rounds? How often should I change magazine springs?
Magazine springs in semi-auto pistols are one of the most critical springs and the subject of much debate and concern. Magazines which are kept fully loaded for long periods of time, such as law enforcement applications, will generally be subject to more fatigue than the weekend shooter's magazine springs which are loaded up only when shooting. Magazine design and capacity also affect the longevity of the spring. Older designs where maximum capacity was not the goal such as the 7 round 1911 Colt magazines will last for years fully loaded. There was a lot of room for a lot of spring which reduced the overall stress on the spring. In recent hi-capacity magazines, the magazines were designed to hold more rounds with less spring material. This puts more stress on the spring and will cause fatigue at a faster rate. Unloading these magazines a round or two will help the life of the spring. Rotating fully loaded magazines will also help the problem somewhat but is not always practical. In applications where the magazine must be kept loaded, a high quality magazine spring such as Wolff extra power magazine springs, will provide maximum life. Regular shooting will verify reliability and regular replacement of magazine springs will provide the best defense against failure from weak magazine springs.
6. My spring got shorter after I used it for a short time. Is it bad?
Most new springs will take a set when they are first compressed. That means they will shorten up. This is a normal event and you should not be immediately alarmed. The greater the stress on the spring, generally the more set that will occur. All Wolff springs take this set into consideration. The ratings of the springs you receive are the ratings after the set has occurred. After set has taken place, the spring should remain essentially stable.
7. My lighter [recoil] spring is longer than the heavier spring for the same gun. Is this a problem?
Wolff offers many springs in different weights for the same use. Factors such as the size of the wire, the number of coils, the outside diameter of the spring as well as the free length determine the strength of a particular spring. Often, lighter springs are longer than heavier springs because lighter wires and/or a different number of coils are used. Free length is then adjusted to achieve the exact strength desired.
8. The spring I purchased is longer than the original spring so I don't think it will fit.
The free length of a spring is not the most important factor in determining whether a spring will fit. Many Wolff springs are longer than factory springs. This is normal and the spring will fit. A more important factor in determining whether a spring will fit is the number of coils in the spring times the diameter of the wire. For example, take 2 springs - one is 7 inches long and the other is 4 inches long. If both springs contain the same number of coils and use the same size wire, both springs will compress to the same solid lengths. The strengths will however be quite different.
Copyright © 1997-1998 W. C. Wolff Company
All rights reserved.
W. C. Wolff Company online publications are intended for the use of W. C. Wolff Company customers for the purposes of researching and purchasing products offered for sale by W. C. Wolff Company. This publication may not be copied, duplicated, modified or redistributed in whole or part without the prior written permission of W. C. Wolff Company.
Copying of this material, in the M-1911 Pistols Home Page has been permitted by
W. C. Wolff Company.
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