There are several reasons to go to single shot; accuracy inherent with a good bolt gun or to comply with rules such as F-Class. And if you're interested in accuracy, that means you'll be hand loading.
Since you already shoot .223 and 6mm, why not build a bolt gun that you could shoot in 600 yd F class matches. A .223 can be fun in F/TR, especially when you beat the .308 guys. Or, how about a 6mm BR Norma or one of the variants of that cartridge for F-open? That way you can use at least some of your reloading gear on your existing rifles too. You may need different dies, but things like shell holders, bolt faces, bullet pullers, measuring devices, and stuff like that will interchange.
I'm a Savage fan. You might consider one of the Savage Model 12 variants. You'll want a heavy barrel if you intend to compete, but if you don't have to carry it very far you might also use it for hunting in which case a magazine with a slip-in single-shot-sled might be just the thing. That way you can convert from target shooting to hunting, assuming the heavy barrel isn't a qualifier. Consider buying a cheap Savage and putting on a new barrel and stock. That can produce a nice match rifle on a budget.
Since you already shoot .223 and 6mm, why not build a bolt gun that you could shoot in 600 yd F class matches. A .223 can be fun in F/TR, especially when you beat the .308 guys. Or, how about a 6mm BR Norma or one of the variants of that cartridge for F-open? That way you can use at least some of your reloading gear on your existing rifles too. You may need different dies, but things like shell holders, bolt faces, bullet pullers, measuring devices, and stuff like that will interchange.
I'm a Savage fan. You might consider one of the Savage Model 12 variants. You'll want a heavy barrel if you intend to compete, but if you don't have to carry it very far you might also use it for hunting in which case a magazine with a slip-in single-shot-sled might be just the thing. That way you can convert from target shooting to hunting, assuming the heavy barrel isn't a qualifier. Consider buying a cheap Savage and putting on a new barrel and stock. That can produce a nice match rifle on a budget.