The barrel is 1:10 and was new. Everything look good. I will shot it again the first week of April and try different bullet manufactures and modify one magazine and polish the ramps. The ramps look good and the barrel looks clean but as for it being right I don't know.
Thanks for your reply.
Hi,
About 2 years ago I bought a custom built AR in 7.62x39mm Piston Driven. The description from the seller is at the end along with some pictures.
I am having two problems with the rifle.
First is a feed problem. I have tried FMJ, JHP and SP. The first time I shot it I used the FMJ and JHP...
I have two SW99 40cal pistols. We I was cleaning them I noticed that the rifling was different on each barrel. One seems to have smoother lands than the other. Is this odd or normal that two barrels would been different? THis is just for info, not something to worry about.
Thanks,
Jeffrey