I just bought a 16 1/4" MGM bull barrel in 35 Remington. Have not received it yet but I imagine that my current 7-30 Waters 21" taper barrel forearm probably won't fit the bull barrel. I was hoping to get an early start shopping for a forearm for the bull but don't know that much about the forearm differences. This is for the original style Contender frame. I guess my first question would be does MGM have a standard diameter for their 35Rem bull barrels? I have a call in to them but not a return call yet. Is there a good site that talks about what forearms go with what barrels for the old Contender? Thanks all!