I have a Rock River PP with a 20"bbl. I have owned the gun for 4 years or so. I have always had problems with ftf. Some times worse then others. Factory ammo,reloads its all the same. I have had the gun checked out by smiths 2 different times. After a thero cleaning at times I can shoot upto 30rds without any issues. When its feeding properly its a very accurate firearm. When its starting to have issues feeding the groups will open up. I have tried several different mags and at times it seems that some work better but some will hardly ever shoot more then 2-3 shots. What happens is the loaded cartridge will get stuck in the chamber but not far enough in to fire.
The last 2 days I have been trying different loads for accuracy. I put in a 5 rd mag and shot one shot at a time by dumping a round in and chambering with the bolt catch with no issues. Man was it accurate. I shot one 5 shot 300 yd group at .833 with 1 called flyer. Today I had about 5-7mph wind at 2 oclock and I shot 5 rd group at 3.47". At times I cannot do better then 2"+ at 100yds while loading from a mag. Any ideas why I am having issues when using a mag but not while loading singal rounds and chambering with the bolt catch lever? Somthing must be causing the bolt to jam somewhat and not have the needed power to compleatly chamber a round. At times a good amount of pressure is need to extract the loaded round.I clean the gun regularly. I dont think its happening because the gun is dirity. If its stripped down at times I can get off 20-30rds before I have a issue but not always.
The last 2 days I have been trying different loads for accuracy. I put in a 5 rd mag and shot one shot at a time by dumping a round in and chambering with the bolt catch with no issues. Man was it accurate. I shot one 5 shot 300 yd group at .833 with 1 called flyer. Today I had about 5-7mph wind at 2 oclock and I shot 5 rd group at 3.47". At times I cannot do better then 2"+ at 100yds while loading from a mag. Any ideas why I am having issues when using a mag but not while loading singal rounds and chambering with the bolt catch lever? Somthing must be causing the bolt to jam somewhat and not have the needed power to compleatly chamber a round. At times a good amount of pressure is need to extract the loaded round.I clean the gun regularly. I dont think its happening because the gun is dirity. If its stripped down at times I can get off 20-30rds before I have a issue but not always.