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Did you use the seal because you were having blow by issues with the Decimax wad?
I used the gas seal based on other recipes and getting the correct stack height. The Decimax wad is slightly looser in the hull than an SP10 and I was concerned about powder migration, but I did not try it without the seal.
Last edited by Laurence Frank; 01-23-2026 at 03:53 AM..