1911 Ammo Improvement?
Posted: Sun Oct 07, 2012 2:55 pm
Decades ago, I had Clark Custom Guns build me a 1911 Wadcutter Gun in .45ACP caliber which proved to be a highly accurate and reliable pistol.
After quite a bit of time, it began to experience occasional, random failures to feed with my ammo. The rounds would feed half way towards the chamber and then suddenly stop. The pistol checked out to be okay.
I'll admit to being one of these guys who shoots and reloads his brass until the case mouths start to crack and split. Prior to reloading, all cases are 100% visually inspected. Powder charges, crimp amount and cartridge o.a.l. are routinely monitored while running the Dillon Square Deal "B"" Progressive Press. Before shooting them, each live round is again visually inspected and a Midway USA Cartridge Case Gauge is used to "chamber check" them.
A fellow competitor offered some helpful advice. The problem? Our 1911's are all steel while the cases are made of brass. Of course, the brass is the softer of these 2 materials.
Upon firing, the steel "claw" of the 1911's extractor violently pulls back on the rim of the case during the extraction and ejection cycle. Over a period of time with constant use, the rim starts to develop small burrs that are raised on its surface. These burrs can become large enough so that they interfere with a live round's ability to properly "mesh" with the extractor during the feeding cycle. Thus the failures to feed!
The solution? Dig out that old shell holder that you had used in the past with that single stage reloading press that's now gathering dust on your bench. (Mine is an RCBS #3).
Regardless of make, all shell holders have a "U"-shaped cutout on them which allows a round to enter it. Holding the shell holder in your left hand with the cutout at the 12 o'clock position, place a live round into it with your right hand. The cartridge will now be horizontally oriented with its base facing to your left and the bullet nose pointing to your right. LIGHTLY
grip the brass case between the thumb and trigger finger of your right hand. Quickly, yet gently, roll it a few times taking care not to inadvertently lift it slightly out of the shell holder.
Any round that rolls smoothly is a "good 'un". But, should you feel some that exhibit any resistance, dragging, binding or hesitation then that rim probably has burrs on it that may not allow reliable feeding. Mark and put it in your "practice only" container. Testing this way, I have even run acroos a few cartridges that were so bad that a full 360 degree turn was impossible to accomplish.
The key to this technique is not to use a gorilla's grip on the round. Also, do not use a gorilla's force when turning the round when it is in the shell holder. Doing so may prevent you from detecting the questionable brass rims.
I know of one shooter who even goes to the trouble of filing the rims of his bad cases when they are EMPTY, just to get a bit more life out of them. Holding a shell holder by itself can be hard to do for some and it can be fatiguing after awhile. I had a machinist friend make me a simple handle with a setscrew that locks the shell holder to it.
Since following my friend's tip, the unexplained feeding failures have ceased to exist! Try it.
After quite a bit of time, it began to experience occasional, random failures to feed with my ammo. The rounds would feed half way towards the chamber and then suddenly stop. The pistol checked out to be okay.
I'll admit to being one of these guys who shoots and reloads his brass until the case mouths start to crack and split. Prior to reloading, all cases are 100% visually inspected. Powder charges, crimp amount and cartridge o.a.l. are routinely monitored while running the Dillon Square Deal "B"" Progressive Press. Before shooting them, each live round is again visually inspected and a Midway USA Cartridge Case Gauge is used to "chamber check" them.
A fellow competitor offered some helpful advice. The problem? Our 1911's are all steel while the cases are made of brass. Of course, the brass is the softer of these 2 materials.
Upon firing, the steel "claw" of the 1911's extractor violently pulls back on the rim of the case during the extraction and ejection cycle. Over a period of time with constant use, the rim starts to develop small burrs that are raised on its surface. These burrs can become large enough so that they interfere with a live round's ability to properly "mesh" with the extractor during the feeding cycle. Thus the failures to feed!
The solution? Dig out that old shell holder that you had used in the past with that single stage reloading press that's now gathering dust on your bench. (Mine is an RCBS #3).
Regardless of make, all shell holders have a "U"-shaped cutout on them which allows a round to enter it. Holding the shell holder in your left hand with the cutout at the 12 o'clock position, place a live round into it with your right hand. The cartridge will now be horizontally oriented with its base facing to your left and the bullet nose pointing to your right. LIGHTLY
grip the brass case between the thumb and trigger finger of your right hand. Quickly, yet gently, roll it a few times taking care not to inadvertently lift it slightly out of the shell holder.
Any round that rolls smoothly is a "good 'un". But, should you feel some that exhibit any resistance, dragging, binding or hesitation then that rim probably has burrs on it that may not allow reliable feeding. Mark and put it in your "practice only" container. Testing this way, I have even run acroos a few cartridges that were so bad that a full 360 degree turn was impossible to accomplish.
The key to this technique is not to use a gorilla's grip on the round. Also, do not use a gorilla's force when turning the round when it is in the shell holder. Doing so may prevent you from detecting the questionable brass rims.
I know of one shooter who even goes to the trouble of filing the rims of his bad cases when they are EMPTY, just to get a bit more life out of them. Holding a shell holder by itself can be hard to do for some and it can be fatiguing after awhile. I had a machinist friend make me a simple handle with a setscrew that locks the shell holder to it.
Since following my friend's tip, the unexplained feeding failures have ceased to exist! Try it.