I think he has 11 answers out of 10 folks!
How did you set headspace? With new brass I would set it to the new brass. That way the first firing would be near the same internal volume as fireformed brass. Lots of "known" loads for 223 with 69 grain bullets. A little research should produce known good loads with your powder choice. Backoff a little to start with of course! Should make life a little easier and save a lot of components and barrel life. On a new barrel, I usually just start with my last barrels load. If it was on the warm side I back off a little. On a non-warm load I start with the old load!
Good luck on your new barrel.
Frank
How did you set headspace? With new brass I would set it to the new brass. That way the first firing would be near the same internal volume as fireformed brass. Lots of "known" loads for 223 with 69 grain bullets. A little research should produce known good loads with your powder choice. Backoff a little to start with of course! Should make life a little easier and save a lot of components and barrel life. On a new barrel, I usually just start with my last barrels load. If it was on the warm side I back off a little. On a non-warm load I start with the old load!
Good luck on your new barrel.
Frank
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