First the Glock 19 fired perfectly, I dont think I have shot better with any other gun that I have had.. I hadnt been to an actual range in probably a year, so maybe I forgot my bad habits now the bad.. I just put a Green Mountain Barrel on my 10/22 with a Hogue stock, I got to the range today ready for some fun and I put the magazine in, release the bolt and it jammed, I took out the after market mag and put in the factory 10 rd mag and I had the same result, the bolt would not close because the round was not feeding into the barrel. What could be the issue, its just cheap Remmington Brick ammo that the factory 10/22 ate with no problem, or is the barrel not on right if that is possible? Any help, I dont know what to do.