Groo here
One , change the grips to something rubber or that fit better.....
Two, Search online for some remanufacturing companies
that load plated or coated ammo at under 800fps and get a case.
Last go to a lighter bullet, non +p.
There are lots of reloaders / re-manufacturers out there and case lots are cheaper.

PS. I have one and had no problems with mil- spec ammo after a grip change.
PPS If you change a 625 cylinder for TI it will way less than a TR with the steel cylinder...