05 you gotta do this.... pull the charging handle back and let the mag catch hold the bolt.. ....then pull on the charging handle and measure to see how much further you can pull the bolt back off the bolt catch? "Bolt lug is hitting the back of the case to push it forward.. " .. I dont understand what you mean? ive never had a Dpms car buffer at 2.25...all of mine are 2.50 and you said off the bolt catch it feeds fine in your post...right?...pics would be nice Wash