My son has a M700 ADL with the 20" barrel. I am able to run 105 AMax's at 2950 pretty easily with RL22.. RL19 runs 90AB's around 3075 and no issues either. Rifle is very accurate, and I am not sure the extra barrel would add too much to the package. It is a great little rifle. Deserves a better stock, but it shoots pretty well as is.
