I'm going to however handload the 90 gr. version for my custom .25 Roberts. That barrel has always produced best groups with all my other loads at max velocity.
But, with a mono bullet and specifically the GMX, are there different rules-of-thumb for MV and groups? Does the GMX perform best with full-tilt loads or with loads dialed back some?
Thanks,
Pud
I run em through my Bob and yes, it has worked very nicely at top speeds. I’ve utilized RL-15, IMR-4350, Ramshot Hunter, and Ramshot Big Game, all of which gave excellent velocity & accuracy.