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Posted: 2/11/2004 7:12:43 AM EDT
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I have a Pre-ban Colt Sporter that fails to feed the first round of a 30 round magazine when the magazine is fully loaded. The relavent facts are: -The rifle is in original configuration with all of the same parts it was built with. -The rifle has about 5000 to 6000 rounds through it. -Ammo is the South African battlepack stuff that came out about a year ago. -The problem is consistent on which magazines it occurs on. Unfortunately it occurs on most of my magazines. -The bolt moves the round about 1/2 to 3/4 way out of the magazine before stopping. -With 28 rounds in the magazine, the problem goes away. This is my current but hopefully temporary solution. -With 29 rounds in the magazine, the problem is mostly gone. -The problem began after I refurbished my magazines with new stiffer springs. Would a new recoil spring help? Manufacturer and type reccomendations? Any other potential solutions? (I'm trying not to resort to buying a bunch more magazines) |
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My guess would be that considering that the rifle is a per-ban (read Old) that may have been stored with the bolt locked back, and that you have gotten thousands of rounds out of the recoil spring (buffer spring), it may just be time to replace the $10 recoil spring. Also, remember to lightly lube the spring/buffer/extension when you install the new spring. Hell, come to think of it, your current spring/extension tube may just be fouled and binding, which is causing the problem in the first place. Make sure that you have pulled the buffer/spring and clean it during your normal cleaning of the rifle. Also, check the end of coil winds of the spring, then may have flared and the coils ends may be scraping down the tube and may be the limiting factor of a fully loaded mag, verse a slightly unloaded mag loading in the rifle. Best to just take a file and knock down the outer edges of the tips to make sure that they are not scraping down the tube. And, since you have the buffer out, take a file to the buffer end roll pin and flush it down to the side surfaces of the buffer. If the roll pin is catching the recoil spring as the buffer moves forward, it will slow down the buffer traveling forward(read may be the another deciding factor). Note: If this was another type of rifle than a Colt, I would suggest that you check the hammer catching on firing pin during the carrier forwards travel, but this should not be the case. |
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