My only experience with the 218 has been with a Ruger #1-B. This rifle has a 1 in 14 twist, and stabilizes even 55g Nosler BT's with maximum loads.
The best load I've loaded in it so far is 40g BT's, CCI BR-4 primers, and 13g of IMR 4227 if memory serves. It's pushing 3000 fps, and consistantly punches dime sized groups at 100 yards.
Personally, I love the 218 Bee. It's very easy to load for, accurate, and makes an excellent groundhog, or predator rifle.