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Rifles, Reloading, Optics, Equipment
Reloading
Primer difference
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<blockquote data-quote="Mmac52280" data-source="post: 2404920" data-attributes="member: 120230"><p>About a century ago, I started reloading shot shells only. I let a gun store set me up. Not a wise move. Think my first book was a Lymans, and I started reading and realized a different primer could raise the pressure 1,000 psi with maybe a marginal increase in velocity. Since then, I use books and recipes to narrow down the likely results on using a different primer. As someone else stated, it is a heat issue. But powder also reacts differently to that heat too. Not always in a good way. I also do handgun ammo, a lot in 45 ACP. Have a friend who is just getting started who made a near fatal assumption. A 120 grain copper bullet called for 10.2 grains of powder to start. He assumed a 230 grain bullet would need more powder. That is backwards. A heavier bullet is slower to move and pressure builds faster. Reloading is kind of a disease. In a good way, sort of.</p></blockquote><p></p>
[QUOTE="Mmac52280, post: 2404920, member: 120230"] About a century ago, I started reloading shot shells only. I let a gun store set me up. Not a wise move. Think my first book was a Lymans, and I started reading and realized a different primer could raise the pressure 1,000 psi with maybe a marginal increase in velocity. Since then, I use books and recipes to narrow down the likely results on using a different primer. As someone else stated, it is a heat issue. But powder also reacts differently to that heat too. Not always in a good way. I also do handgun ammo, a lot in 45 ACP. Have a friend who is just getting started who made a near fatal assumption. A 120 grain copper bullet called for 10.2 grains of powder to start. He assumed a 230 grain bullet would need more powder. That is backwards. A heavier bullet is slower to move and pressure builds faster. Reloading is kind of a disease. In a good way, sort of. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Primer difference
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