I have 2 alloy J frame 32 H&Rs, one with a cylinder reamed to fire 327 Federal mag. Interesting, loud, pretty snappy recoil. I can't imagine either the frames or people being able to handle more. Plus, there is a point of diminishing returns using 2" barrels. Even though the one handles the 327 fine, I now carry 32 H&R in both because I can get back on target faster and if I do my part I do not believe the initial gain is going to make a big difference. A good hit with the H&R is more effective than a marginal one with the 327.