What sort of accuracy are you getting from the GPH? What bullets did it shoot the best? Leaving out heavy lead conical, because they have too much recoil for me.
Muley..
Since the rifle has a 1-32 twist I found that 295 grain Powerbelts shot really good out of the rifle. And I mean real nice groups out to 50 yards. Since its open sights I seldom shoot further. Also the 240 grain T/C Cheap Shots did a real nice job of grouping. But the go to bullet is the .452 300 grain Hornady XTP in a HPH24 sabot. They shoot real good with 90 grains of 2f powder. I use 4f for the prime powder.
Bronko.. I dislike peep sights do I use the primitive sights on my rifle. I still have to drift the sight and take a little more off the front sight. Its a terrible thing to admit, but since I got that Sig Sauer 522.. it seems like that is all I want to shoot anymore.