After a year of experimenting, I found that my 336C/35 Rem loves the Speer 180 FP, over a max charge of Varget. I use Lee Collet Dies, and will soon have them in all rifle calibers I load for. Recoil isn't bad with this bullet, thanks to the adequate recoil pad on the gun. I can shoot this one all day, and I don't weigh much. I don't have a chronograph, but the trajectory is fairly flat, and it should have the energy needed to take down a ram at 200. I've also had good results with the Rem 200-Core-Lokt, in both factory loads and handloads. A heavier bullet won't help with trajectory or recoil, so I'd say the 200 grain load should be the heaviest you'd need to try. I'm also getting ready to try IMR-4895 in the 35, I love the way it meters, and I'm saving my sheckels to buy an eight-pound keg of it. I'm hoping it will become my all-purpose powder, to use in 30-30, 35, and .223!
Papajohn