Originally Posted by perazzimx2000
thanks for the welcome fred. the 243 cb just sounds cool. but the 284 round is probably a better choice. i will have to decide, need to save my $$ anyway.
Welcome, As you will find out alot of opinions on 6mm wildcat calibers or standard ones.
Here what I've build in the past
6x284--1/14,1/8 twist barrel twist barrel 26"/28" long
6Rem 1/14,1/12,1/10 twist barrel 24"/26" long
6RemAI- 1/10 twist barrels 24"/26" long
243AI--1/10 twist barrel 28"
6x250-- 1/14 twist barrel 24" long
243--1/10 twist barrel 24,26,28" long
6br--1/8 ,1/14 twist barrel 24" long
One thing I've learned is finding a good gunsmith that likes to build wildcat calibers and he can give you some input from past builds.
If your planning on any type of volume shooting the calibers that give 4000fps in 6mm will give you the shortest barrel life and even working up a load will shorten it alot.
As you drop velocity of course barrel life will increase and you get around 3500fps be surprised on how much barrel life you get. I think I went thru about 8 barrels 1/14 twist with the 6x284 and about 4 with the 6Rem also 1/14 twist as my big plan was 3800/4000fs or better with 70gr bullets.
With some of the good barrel being made today like the 5c/5r the choices could be endless.
As to accuracy or which case may be better I think alot has to do with how good a shooter is on reloading and understanding on how to tune a load.
there an old story, guy walks into a famous BR gunsmith and ask him can he build a rifle to shoot in the .0's gunsmith ask him can you shoot in the .0's.
The days I'm shooting a 243AI,243,6BR and 6ppc.