No need for a gas check with the 357 but having said that, the old Ray Thompson #358156 is a very accurate bullet. The #358429 is also a very accurate bullet if your cylinder will hold it, as mentioned some cylinders won't in a magnum case but they will in a 38 special case. If you have a large frame gun & you work up to it, 13.5 grs of 2400 with the Keith bullet has taken many, many deer. But, don't use that load without first working up to it & remember Alliant 2400 is just a tick faster than the older Hercules 2400. The Miha 175 gr HP is an excellent bullet & it's a PB.
Also you don't need a really hard cast bullet, shoot them as soft as you can & still maintain accuracy, why would you do it any other way? Again, you want accuracy but you can get that with a bullet that is a bit on the softer side, even if you get a slight amount of leading, how many shots are you
going to fire on a hunt?
Dick