Forget that the 6mmBR Rem ever existed. You want 6mm BR Norma always. The 8 or 9 twist barrels are used for the long range heavier bullets (105-107). The freebore is so long you cannot get the bullet even close to the rifling with a 65-68 gr bullet. If you are going to shoot 68 gr bullets you want zero freebore. I have 0.065" freebore 58 gr bullets are only about 0.10" in the case when they are touching the rifling. If you want to shoot small groups at 100-200 yards you want bullet weights like the 6PPC shooters use with a 13-14 twist (65-68 gr). You can walk into any good shooters supply store and buy 6mm bullets that will shoot well. It's almost impossible to buy the 110-118 gr 30 cal bullets that they use in the 30BR at 100-300 yards. 30BR has a terrible ballistic coeficient if you want to use it for varmints beyond 300 yard. The lighter bullets are what you want for short range BR and varmints. My 14 twint will stabilize up to 70 gr. 75 gr Sierra Varmint HP are all over the target. I have confidence in my rifle to shoot to 600 yards but I hardly shoot beyond 350. I can shoot 1/4" groups with the 58 GR Hornady VMax, 65 GR Hornady VMax and the 70 GR Sierra Blitz King, all super explosive on small varmints and I don't consider my self a good shooter. The challenge isn't to find better loads but for me to improve my skills.
George Kelby's shop put my Krieger barrel on my rifle. He sold me Redding 6BR Rem FL dies (yes that's Rem not Norma). They work fine. I ended up buying Redding 6BR Rem Bushing dies and a Wilson straight line seater. I screwed the decapping rod way down and use the original FL die and use it only for depriming.
For casual BR I wouldn't consider a 30 BR just because it makes a little bigger hole. The bullets cost more, it isn't any more accurate than a 6BR, isn't suitable for varmints, it's almost impossible to buy the 30 cal BR bullets. and the bullets cost more. Sierra is the only Co. I know of the makes a 110 GR 30 cal. bullet that's super explosive for varmints. It could be years before they go back in production and you won't ever find them in a store. All the stores carry 58-70 6mm bullets. No store carries 110-120 GR 30 cal. bullets.
George Kelby's shop put my Krieger barrel on my rifle. He sold me Redding 6BR Rem FL dies (yes that's Rem not Norma). They work fine. I ended up buying Redding 6BR Rem Bushing dies and a Wilson straight line seater. I screwed the decapping rod way down and use the original FL die and use it only for depriming.
For casual BR I wouldn't consider a 30 BR just because it makes a little bigger hole. The bullets cost more, it isn't any more accurate than a 6BR, isn't suitable for varmints, it's almost impossible to buy the 30 cal BR bullets. and the bullets cost more. Sierra is the only Co. I know of the makes a 110 GR 30 cal. bullet that's super explosive for varmints. It could be years before they go back in production and you won't ever find them in a store. All the stores carry 58-70 6mm bullets. No store carries 110-120 GR 30 cal. bullets.