I am just getting ready to load the first batch of 243AI loads in my freshly formed brass. Been doing a little reading and have read several places that you can us near max loads for the regular 243 as a safe start load for the 243AI due to the increased volume of the AI. Thoughts? Suggestions?
I am planning on starting with 58gr V-max and RL15 or RL19 or Varget. I have data for the standard 243 in all powders, I am leaning towards RL15 or Varget. Thoughts?
204, 22 K-Hornet, 222, 223, 22-250, 22-250AI, 6BR, 243, 243AI, 6-06, 6-WSM, 250-3000AI, 270, 7-08, 7RM, 30BR, 308, 30-06, 375 H&H, 444 Marlin, 450BM, 458WM
You're right.Start slightly above what you used to fireform the brass,assuming you used the max load listed to fireform.It won't take much,to get the accuracy on a given load.With a Sie 95gr Match King in a 1:9 twist I had(so far) my best 5 shot group(.221), with 46.5gr of H4831sc OAL 2.770.
Thats what I thought, the first batch of formed brass was the factory stuff I had lying around. Thanks, just wnated to check with someone else before I started.
204, 22 K-Hornet, 222, 223, 22-250, 22-250AI, 6BR, 243, 243AI, 6-06, 6-WSM, 250-3000AI, 270, 7-08, 7RM, 30BR, 308, 30-06, 375 H&H, 444 Marlin, 450BM, 458WM
Or one can use 6mm rem data the h20 capacity is the same so i have heard.
Model 12 btv .204 nikon monarch 4-16x50<br />Model 110La 243ai 26"brux 1:8 twist sss comp trigger leupold vx3 4.5-14x40 tack driver!!
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