I currently have a 340 weatherby mark v synthetic, and am shooting 250 grain partitions. I have never been able to get great groups i have gotten good groups, 2" @ 300yards consistently but then all of a sudden it wont group at all. Lately it has just been so poor that i don't even want to think about it. I have ordered a new stock from H-S precision and am still waiting on it. I guess my question is it has a #2 contour barrel and was wondering if i should go with a larger contour barrel. If so where should i go and who makes one with a muzzle brake
since the 340 packs quite a punch without a break. I have hunted almost my whole life but in the past 2 years or so have really gotten into longer range. I hunt in Oregon and want something i can pack all day. I am looking for something i can trust to shoot consistently out to about 600 or 700 yards in the field and on the range. Thanks.