i've got a little I frame smith that i have finally ran out of ammo for. i have some 100gr boolits which i know is a little heavy for the little plinker but a soft load should be fine for it. the gun is a 1956 model. i keep plenty of hp-38 around and i'm thinking 1.6 to 1.7 grains should be ok. data is kinda spotty so i thought i'd check here. thought,opinions?