Thank you all for the replies.

how does everyone pull down 10mm loads? I have a hornady collet puller, but it will not grab the bullets, because of how deep they are seated in a 10mm. I hate using the inertia puller/hammer thing. It takes so long and is just a pain.

what is STHP?

I am new to the 10mm scene. I have a springfield omega 6"slide and I had a case blow out. It seems that the case is not supported very well at 6 o'clock on the barrel. Is this just my gun, or is this all Omegas?

I shot new Remington UMC 180 gr and PMC 170 gr through it. I also shot some PPU, it felt like weak 40 S&W rounds. I shot 9.0 grains of longshot on 180gr XTP and it was fine, I saw pressure signs at 9.2 (smile) and the 3rd shot at 9.2 it blew out the bottom of the case. It did not feel good in the hand.

I have seen some of the Chronograph numbers for the Factory Norma Ammo and am surprised. I was reading an article on the Bren-ten site and came across an article of Shooting times from April 1991 and they chrony'd the Norma 200gr stuff at 973fps, out of a 5" Springfield linkless. Did Norma increase their load over the years or did the people at Shooting Times in 1991 have a crappy Chrony?