This will be my first foray into long range shooting. Maybe I will even use it for hunting. The only thing I have, besides the desire, is a 7-.338RUM with a long neck reamer. During conversation with a 'smith I mentioned a 30" barrel. He didn't see a problem with that. What kind I velocity do you guys think it will get with at least 175 grain bullets? If I use it for hunting I will go with Hammer Hunter 177 grain bullets. Target bullets I have no idea.