Thread: 6x45 Rem barrel

Originally Posted by Tentman

OK - now now guys. The oldest rule with scrapping kids - distraction, so a question . . . .

If one has a Remmy 700 action with a 223 bolt-face, is there enough of a gain in ballistics to go 6mm ARC over 6x45??

I believe the 6MM arc is 6 PPC case size, essentially a 6PPC with a faster twist,
thus your .223 bolt face, will need to be opened up,
I have a Sako 6PPC and coopers in 6x47 Remington (.222 mag) and 6x45, they are all with in a 50-100fps of each other, better brass for the 6PPC and 6x45 so i can push them harder,
my single shot cooper 6x47 Remington is more accurate than the other two, and lighter, with faster speeds, with 75gr weight (50fps)but only 1-14 twist, (3030)fps, my 6x45 is 3000fps, the Sako A1 sporter in 6PPC, is (3000fps) best accuracy was slight slower, 3113fps was starting to get pretty hot, Sako brass,
All these are 29-30grain case capacity. 6x45 20" barrel the other two are 22"
A 6mm-204 or 6 TCU will give more slightly more speed, at the cost of custom dies and perhaps feed issues with the sharp shoulder, I dont think there is enough gain for the extra costs.
I recommend going, with the one that fits your bolt face, and has the most aviable components. (brass)