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Rifles, Reloading, Optics, Equipment
Reloading
Magnum or standard primers.
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<blockquote data-quote="Mike Matteson" data-source="post: 1979673" data-attributes="member: 101791"><p>I use large rifle Fed 210, and stay with that primer. It's now my understanding they are the hottest large rifle primes on the market. I am generally loading in the middle 70 grains of powder and using 26" barrels. Most of my powder is H4350SC. If I am going to use a Mag primer, I would reduce my powder load by at lease 5% to start with. I am generally several grains over what the reloading book calls out for. If the reloading books calls out Mag primes, I start with their reduced load and work up from there. My thinking is I am trying to burning the powder to the end of barrel to gain the velocity, not in the first few inches of the barrel, to cut down the pressure at the start. There by reducing the overall pressures somewhat. I maybe wrong, but that how I figure it. Where powder loading is beyond that pushing 75+ grains and up. I would says Mag primes would come into use. Some mag rifle are burning 90+ grains of powders. Some are using shorter barrels and there a need to get the powder burn before the end of the barrel to achieve a full powder burn and velocity. You need a chronograph to tell you where you're at. Otherwise just wasting powder and bullet for little gain.</p></blockquote><p></p>
[QUOTE="Mike Matteson, post: 1979673, member: 101791"] I use large rifle Fed 210, and stay with that primer. It's now my understanding they are the hottest large rifle primes on the market. I am generally loading in the middle 70 grains of powder and using 26" barrels. Most of my powder is H4350SC. If I am going to use a Mag primer, I would reduce my powder load by at lease 5% to start with. I am generally several grains over what the reloading book calls out for. If the reloading books calls out Mag primes, I start with their reduced load and work up from there. My thinking is I am trying to burning the powder to the end of barrel to gain the velocity, not in the first few inches of the barrel, to cut down the pressure at the start. There by reducing the overall pressures somewhat. I maybe wrong, but that how I figure it. Where powder loading is beyond that pushing 75+ grains and up. I would says Mag primes would come into use. Some mag rifle are burning 90+ grains of powders. Some are using shorter barrels and there a need to get the powder burn before the end of the barrel to achieve a full powder burn and velocity. You need a chronograph to tell you where you're at. Otherwise just wasting powder and bullet for little gain. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Magnum or standard primers.
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