Thread: Impossible 6mm ??

I think your length restriction makes that goal pretty difficult.

I have a 6xc which is a touch shorter than your Creedmoor was. 105's are still 2.7" when seated out properly. 3k in a 22" is about its limit and it should be good for 2-3k rounds of hunting use.

The 6mm-204 Ruger I've been shooting is also about 2.6" with heavies. Great barrel life. But it won't deliver anything close to 3000fps. Kinda rules out 6x45 too.

The BR's, GT's and Dashers will be a bit long and won't give you 3k in a short barrel either. Guys with 28" barrels on a couple of the YouTube channels I watch seem to be pushing that 105gr class up to around 2800-2900".

I can't remember how long a 243 WSSM is. It would probably give 3k in a short barrel but barrel life will not be great. Wrong bolt face. And crappy brass options.

Yeah mate. Asking a bit much there.