I have a super 16 and 35gr.748 with 130 Speer Flat Nose cci250 primer rifle section of manual 13 and double checked with Speer is about as hot as I want to shoot. Pretty good recoil. To fire form A sierra 100gr. hp touching the lands and Minimum load of IMR 3031 30gr makes for some good tack driving and easy on the hand shooting. I do load From the rifle section as the best factory ammo from federal is loaded for rifles and they shoot very well from this pistol but Bullets don't preform very well on deer. I'm no expert but Me personally would not like the recoil of 38gr of the 748.
Benny