Gents, Just started with a new model 70. I want to shoot Horandy 162 SSTs. Can you guys give me a powder recommendation? I've experimented a little with RL-17 and I really don't have enough time behind the gun to form a great opinion. I've worked up to 60 grains and i'm seeing the string average around 3100. Accuracy seems fine for the first 3 shots. The groups did open up after that but i suspect the sporter barrel on this extreme weather is the reason. After doing some research it seems a lot of folks think that RL17 isn't the best powder for this cartridge. I'm looking for a few recommendations.