I own several Contender Carbine barrels, love them. I also own a TCR-83, the one with set triggers. I have 7MM Mag, .338 Mag, 30-06, .243, 22.250, and 12ga with 3 1/2" Chamber. The .338 and 3 1/2" 12 ga are a bit tough to shoot due to heavy recoil in this light gun. A year ago my wife and son gave me an Encore with .50cal Muzzleloading barrel. I shoot three Pyrodex pellets, and love it. This Christmas they gave me a 30-06 barrel. I took it to the range yesterday. I was shooting 125 gr Speer TNTs, in front of 53 grains of IMR-3031, in my NEF Handi. This is a sweet shooting load in the light Handi, it really reaches out there and recoil is negliable. I got the Encore out and tried a couple of shots from my varmit rest. Boy does that thing kick. I'm not looking forward to shooting 180s in it.