I agree with the 220 Speer. I shoot them in my contender. They are accurate and tough. I also wouldn't be afraid to juice them up a bit over load data commonly seen for the 35. The 336 is a strong action and has several other higher pressure offerings. I'd bet you could run the 220 at 2050 or so in the 336 with safe pressures. Do a search on that subject - you'll find plenty of info.

Adversity doesn't build character, it reveals it.