i was talking to a buddy of mine last night about putting a brake on my r700, he said i should look at putting a heavy barrel on my gun first. right now its chambered for 30.06 and i think if i can get some muzzle control over this gun id be happy staying with this caliber. he said there should be some factory heavy barrels floating around and to look for those before looking aftermarket. so, couple things, what can i expect to pay for a good used heavy barrel and is it worth going that route or better to go aftermarket? and also how is the barrel attached to this gun? is it threaded in or is is soldered in place? and any help in pointing me in the right direction to find one would be great aswell. thanks guys