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Beetroot....the trap with that thinking is the slower twist is NOT FAULT of the cartridge...its the rifles it came in before a lot of us were out of school,if not born.....
.243 22-250 .222 ...

the bit that really cracks me up is that the 204 ruger is pretty much a necked DOWN 222 magnum and these days folks are taking the 204 case and necking it UP to .224 yet you very seldom see...

And the .224 savage.....yeah that's my point. Lots of pissing around for bugger all gain.

I know of a fella..who got a .223 reemed out to that longer version,based on 204 case...used it,stuck it in cabinet as pain in arse in so many ways,then years later got sick of not having cheap easy...