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Rifles, Reloading, Optics, Equipment
Reloading
Erratic pressure signs on previously safe load
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<blockquote data-quote="Tidus56" data-source="post: 2307760" data-attributes="member: 104495"><p>This brass that was safe the first time was virgin brass? Now it is 1x fired going into its second firing? If that's the case and you developed a load on virgin brass. You need to develop loads on 1x fired brass or even 2x fired brass because the first shot or shots are fire forming the brass to the chamber this takes some of the pressure to expand the case to the chamber. If you full length size maybe this isn't as big of a deal I don't know as I bump size. </p><p>So a load that was safe on virgin brass can show pressure on 1x fired brass because it isn't using as much energy to push the case out to chamber You should be seeing velocity that's higher as well.</p><p> Ex I had a cartridge shooting 60.6 grains on virgin brass and was safe. Loaded it for second time at 60.6 without thinking about it and had pressure signs and higher velocity. I dropped my velocity back to what it was before by decreasing powder charge and it no longer shows pressure and have same accuracy as first load. </p><p>I would guess that's the issue but I could be wrong, that's just a possible culprit.</p></blockquote><p></p>
[QUOTE="Tidus56, post: 2307760, member: 104495"] This brass that was safe the first time was virgin brass? Now it is 1x fired going into its second firing? If that’s the case and you developed a load on virgin brass. You need to develop loads on 1x fired brass or even 2x fired brass because the first shot or shots are fire forming the brass to the chamber this takes some of the pressure to expand the case to the chamber. If you full length size maybe this isn’t as big of a deal I don’t know as I bump size. So a load that was safe on virgin brass can show pressure on 1x fired brass because it isn’t using as much energy to push the case out to chamber You should be seeing velocity that’s higher as well. Ex I had a cartridge shooting 60.6 grains on virgin brass and was safe. Loaded it for second time at 60.6 without thinking about it and had pressure signs and higher velocity. I dropped my velocity back to what it was before by decreasing powder charge and it no longer shows pressure and have same accuracy as first load. I would guess that’s the issue but I could be wrong, that’s just a possible culprit. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Erratic pressure signs on previously safe load
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