11-28-2023, 07:48 AM
I use 2.270 for this 100 gr ttsx, for H335 I've got 2.275. I've shot it in the ruger, the howa and now a replacement barrel from preferred barrels. Bolt actions tend to have longer allowed coal's, but when I did length tests for the group size 2.270 won out.
Now every barrel is different so my process is to first find a node using MV and sd for groups of 4 or 5 each powder charge, then tune by adjusting OAL. I started the ttsx at 2.260. The 2.235 imo is just too short. you will still have plenty in the case neck at the 2.270-75.
Another option you have is primer type since it is bolt action. cci450 is what most folks use but that's needed esp for the ARs. I'm using federal 205's in my bolt actions, again that's what produced the best results.
Now every barrel is different so my process is to first find a node using MV and sd for groups of 4 or 5 each powder charge, then tune by adjusting OAL. I started the ttsx at 2.260. The 2.235 imo is just too short. you will still have plenty in the case neck at the 2.270-75.
Another option you have is primer type since it is bolt action. cci450 is what most folks use but that's needed esp for the ARs. I'm using federal 205's in my bolt actions, again that's what produced the best results.
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