cheap ammo / timing question

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Handyman

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At the range I go to they only sell sellier & ballot ammo . I'm shooting a 4" Ruger GP100 357 mag. Sometimes I feel some stuff hitting me in the face . Is the stuff hitting me because of the cheap anmmo or is it normal for that to happen with a revolver . Could it be a timing issue ? It's a gun I bought new and I've only shot about 200 rounds . I had the guy at the place where I bought the gun look at it and he thought the gun was ok . Could the timing be just slightly off ? Should I send the gun back to Ruger ?
 
S&B is really quality ammo. I've shot a bunch of it and have never had a problem.

What is the "stuff" hitting you? Lead or other stuff?
 
Just because your GP100 is new does not mean it is timed properly. When I bought my GP100 a few years ago, the first thing I did was to measure the front cylinder gap on both the right and left sides with feeler gauges. Mine was 0.009" on 1 side and only 0.003 on the other side. I sent the gun back to Ruger and when it came back there was 0.006 on either side. I've fired many thousands of rounds through it since. Currently I'm shooting at the local gun club twice a month in the Steel matches. Great gun but Rugers quality control over the years has slipped. I've probably sent half of my 10 Rugers back to Ruger because they weren't right from the factory.:mad:
 
Some detritus will often be blown out the cylinder/barrel gap. This can be primer residue, unburned powder particles/granules or bullet material (either jacket or lead shavings). Some of this could be from the ammo, e.g., the powder is not being burned completely and littering the bore with particles. This is not good, as it only takes one good chunk under the extractor star to make the cylinder rotate stiffly or fail to close. Also check for an excessive cylinder/barrel ("flash") gap, and that the chambers properly index with the barrel when the hammer is fully cocked. I had a Smith & Wesson .357 revolver with an excessive flash gap, and when I fired it at night the cylinder flash was bigger than the muzzle flash. :eek: This would certainly blow particles all over your hands or even back at your face. Improper cylinder indexing/timing actually shaves off a little bit of the bullet as it passes from the chamber into the forcing cone.
 
Look in the revolvers forum here on THR, and follow Jim March's revolver checkout procedure. That will tell you a lot about the condition of your GP-100.

It is the seond thread in the revolvers forum.
 
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