I would be conserned with shooting major loads in that gun. But that’s just my concern. It’s a shorter barrel and on a polymer frame. Most people repling to the autocomp loads are most likely shooting them out of a 2011 platform with a 5” or 5.4” barrel. This gives you a .5”-1” longer barrel for increased velocity on a much heavier and tighter fit gun.
The reason son autocomp is used in 9major loads is it’s one of only a few powders that can fit in the case and push the projective the velocity while giving the comp gas to function.
Of if you are using autocomp, I would try 5.4 or 5.6, just enough to get some gas to the comp and cycle the gun. That’s just my two cents. Hope it helps