I have a few hundred 124grain .355 diameter xtp bullets that I would like to use up in my 9mm. The only data I can find, lists a SAAMI maximum overall length but being a truncated cone style bullet I end up with a much shorter O.A.L of 1.040 in order to chamber properly.
I have worked up cast loads of the same weight and overall length and reached my velocity goals with far less than the recommended starting load. I don't want to work up a load for a small batch of bullets I am not going to buy again.
Does anyone have any proven NON +P data for this combination? The pistol powders I have on hand are Bullseye, Red Dot and SR-4756.
Thanks,
James.