I just changed out a Mod 11 trophy hunter to a 223 Rem varmint barrel( Savage take off ) and new boyds stock ( pro varmint). the Mod 11 started life as a 204 with tupperware stock. I did not like the 204 at all either the barrel or cartridge. Sold it got a 223 Rem sporter barrel also a savage take off. Tat rig was surprisingly accurate despite having a sporter weight barrel and tupperware stock. Then bought a 243 Win barrel, ew bolt head (.473 bolt face) and magazine to suit . Also more than accurte enough for hunting purposes Amazing. If years ago someone had told me Inwould be able to alter and chage out rifle parts like this I would not have believed it. I also have two long action 110's with barrels for 6mm BR, 25-06, 270 30-06 and 7 mag.