Re: .357 magnum loads for deer?
I shoot several loads in my GP100. 158 XTP's, 125 HP's, 155 gr SWC hand cast with linotype. Never shot 180's out of my gun. It does shoot the 158 gr XTP's very good. The accuracy potential is completely depedent on me. I wish I had the oppertunity to try them on game, but I never get the chance when I hunt with it.
The cast bullets are shot as cast with alox lube. They shoot fine at 25 yards. You start getting 5-6 inch groups at 50 yards with those. I mostly use those in light 38 special loads for close range practice.
I tried a couple factory loads as well. The 125 PMC's shot OK. Not sure I would hunt deer with them though.
I got some 158 gr soft nose from American Eagle. Believe it or not they shoot great out of my gun. I wouldn't hesitate to use that load on deer. Not sure what the balistics are on that load. Never bothered to look it up, but by the bend of the wrist I have to say they aren't light.
Not sure about the OP's GP100, but mine shoots just about everything I put through it well. Almost everything shoots to the same point of aim as well. Handy when you use it as a multipurpose gun.
I have some 110 gr bullets on order right now to try for groundhogs come spring.
Venison - The other fast food