10-30-2024, 11:51 AM
I have also experienced the raised burrs on the case head on my new Alpha brass. I have checked the volume of the Alpha vs my Starline and they both average 35 grains of H2O overflow, (although the starline is much less consistent). One significant difference I've found is that the rim is thicker on the Alpha which means the extractor is a closer "fit" to the groove and is holding the brass tighter to the bolt face on extraction. I am going to try a different extractor to see if it makes a difference. I also plan to polish the leading faces of the bolt lugs to take the sharp corner off to see if that helps with the gouging of the case head. I am running a 22" +2 RTR barrel with a fixed gas block, 3.8 oz buffer and stock spring in a rifle lower. I am unwilling to give up on the rifle lower as I've been competing with it for a long time. it came from my DCM Hi Power rifle, has an excellent trigger that I am very used to, and I like the lead brick in the stock for competition.