I will say 85 to 95 grains loose triple 777 or 2 triple 777 pellet 100 grains
I find it will shoot just about any thing you throw down the bore.
I set up quick at 50 yards 3 shot any type bullet in a clover leaf group with factory fiber optic
The best bullet for easy loading was the Buffalo 325 SSB bullet/sabot
2 rounds fired no need to swap between shots now on the 3rd shot I found it a little from the crud ring