Need some help with the 6mm w/ a 1 in 12 twist

[Coydog]

I inherited a beautiful bench rest rifle in 6mm Remington that has a Hart barrel with a 1 in 12 twist. The rifle has only had 12 rounds threw it and they were factory rounds. I truly need help getting some load advice on this barrel twist since Remington changed the twist rate years ago to a 1 in 9 twist. I would love to shoot this rifle from reloads and not factory ammo, but I have no clue where to start. Everything I find are great loads for the 1 in 9 twist and nothing on the 1 in 12.
Any advice would be greatly appreciated.
Thanks

 

[Dusty Stevens]

Gonna have to shoot bullets in the 60-70gr range

 

[TheoW]

6mm Rem load

My .244 Rem , Douglas #5,24",!-12 twist, FN single shot, circa '64 records show:
85 gr.,Sierra HPBT loaded with 46 gr. IMR4350
" " " " 48 gr. 4831 (H surplus)
100 gr.Nosler Partition Spitzer with 44 gr. 4831 (H surplus)

These loads should be considered MAX. Start at 7-10% less charge.

Nice cartridge! Enjoy!
Ted

 

[Harold M]

... takes me back ...

I had good luck with the 75 grain Sierra Hollowpoint in a one in twelve twist Douglas, back in the day.
The same barrel does better with the same bullets I use in the ppc - various Euber and Berger options.

Harold

 

[Dick Grosbier]

Any advice would be greatly appreciated.
Thanks

Look in any reloading manual, simply stay away from the heavier bullets. It actually depends on length of the bullet, but generally speaking 85 gr. good, 100 gr. maybe not.