I had a 24" 788 .223, then got a Browning Boss with a 22 or 20" barrel, even with faster burning powder I could see the bullet dropped a lot more at 300yds. My T.20 has a 25" barrel, that is turned down to .80 at the muzzle, never noticed that it was heavy, must be over 11 lbs with scope and bipod on it.