crimsoncomet
Member
Hey guys. I am trying to load some hunting/SD ammo for my delta elite. I have tried 165gr sierra hp and they will not feed at all. The bullets nose is just to square. I had heard that the XTP was designed to feed in semi-auto's, so picked up a box of 155gr XTPs. I want to push the bullets to 10mm levels. Meaning over 1300 fps. I loaded up a dummy round last night and tested it in my gun. OAL was 1.260" and the crimp was .423". It chambered easily and had no set back. I then extracted the round and chambered the round from releasing from slide lock. It only set back .001". After the second chambering, the round was set back .004". I then increased the crimp to .421" and it seemed to help some, but did not keep the bullet from setting back. I have some Double Tap 165gr golden sabres and I noticed that they are crimping there 10mm to .415". Would it hurt for me to try to crimp this much and try to defeat bullet set back? Thanks in advance.