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So I’ve got a noob question. When there was a discrepancy between Large Rifle Primers and Large Magnum Rifle Primers in the 500 magnum Trail Boss I loaded, the less powerful of the Primers generated quite a bit more power in the overall loads. Well, I’m seeing something similar between 45 ACP Small Pistol primers and Large Pistol primers using Unique. To the point of being weary of over pressuring the cases.
Only load data for this weight of bullet I could find is for hollow points, I’m using hollow base. The Lee manual says max load 8.2gr to achieve 1015 FPS with a 185gr XTP bullet. The powder manufacturer say the same for Speer HP 185gr.
If I load a Larger primer case to 7.9 I get in the 930’s range, with the Small primers, at 7.5gr (powder reduction) Ive had a few exceeding 1130.
Is this common for you guys? Looks like I’m going to have to separate these, no doubt, I’m just curious if anyone else has noticed this trend.
Only load data for this weight of bullet I could find is for hollow points, I’m using hollow base. The Lee manual says max load 8.2gr to achieve 1015 FPS with a 185gr XTP bullet. The powder manufacturer say the same for Speer HP 185gr.
If I load a Larger primer case to 7.9 I get in the 930’s range, with the Small primers, at 7.5gr (powder reduction) Ive had a few exceeding 1130.
Is this common for you guys? Looks like I’m going to have to separate these, no doubt, I’m just curious if anyone else has noticed this trend.