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Rifles, Reloading, Optics, Equipment
Reloading
Which comes first, the chicken or the egg? Charge weight or seating depth…
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<blockquote data-quote="Veteran" data-source="post: 2274297" data-attributes="member: 118038"><p>I know you can do it either way, and I started out finding charge weights first and then doing bullet seating depths, but I have come to believe two things. Its going to depend. What I think it depends on is 1) the specific rifle and chamber cut in that specific rifle </p><p>2) the bullet shape and type/design. Some rifles are going to be more sensitive to seating depth depending on their chamber set up and the type and design of bullet. So for example seating depth on Berger VLD's and seating depth on Sierra Gamekings or Lapua Scenars, or a blunter nosed type bullet may be very different in different chambers, but not vary so much by charge weight.</p><p>(You can vary charge weights and powders all **** day on a bullet your rifle hates, and you will just get mad and madder....)</p><p></p><p>I think now, it makes more sense to me to pick a charge weight 7-8% below max load area, and figure out a good seating depth for a specific bullet type and design and weight with a powder that's one of the known go to's for that caliber. Maybe in grosser larger seating depth changes like .01-.02 increments. Yes, and even try some different bullets in this phase too.</p><p></p><p>Then fine tune with different powders and charge weights, and then maybe come back to bullet seating and fine tune with </p><p>very small changes one more time, but making .005 kind of changes to bullet seating depth this time. </p><p></p><p>Change in bullets, design, weight, type, means re doing all this to some extent. </p><p></p><p>Now, if you are an F Class shooter like Brian Litz and you pretty much know your bullet type, design, weight, etc. </p><p>And its not going to change much for hunting, or other shooting, maybe you start with charge weight and powder and </p><p>narrow that down, then fine tune the bullet seating depth. Like I said, it can work both ways, but its somewhat dependent on what your rifle design is, what your goals are, and what your bullet design, and types are, and what your goals will be. That's just what I believe at this point in my own learning.</p></blockquote><p></p>
[QUOTE="Veteran, post: 2274297, member: 118038"] I know you can do it either way, and I started out finding charge weights first and then doing bullet seating depths, but I have come to believe two things. Its going to depend. What I think it depends on is 1) the specific rifle and chamber cut in that specific rifle 2) the bullet shape and type/design. Some rifles are going to be more sensitive to seating depth depending on their chamber set up and the type and design of bullet. So for example seating depth on Berger VLD's and seating depth on Sierra Gamekings or Lapua Scenars, or a blunter nosed type bullet may be very different in different chambers, but not vary so much by charge weight. (You can vary charge weights and powders all **** day on a bullet your rifle hates, and you will just get mad and madder....) I think now, it makes more sense to me to pick a charge weight 7-8% below max load area, and figure out a good seating depth for a specific bullet type and design and weight with a powder that's one of the known go to's for that caliber. Maybe in grosser larger seating depth changes like .01-.02 increments. Yes, and even try some different bullets in this phase too. Then fine tune with different powders and charge weights, and then maybe come back to bullet seating and fine tune with very small changes one more time, but making .005 kind of changes to bullet seating depth this time. Change in bullets, design, weight, type, means re doing all this to some extent. Now, if you are an F Class shooter like Brian Litz and you pretty much know your bullet type, design, weight, etc. And its not going to change much for hunting, or other shooting, maybe you start with charge weight and powder and narrow that down, then fine tune the bullet seating depth. Like I said, it can work both ways, but its somewhat dependent on what your rifle design is, what your goals are, and what your bullet design, and types are, and what your goals will be. That's just what I believe at this point in my own learning. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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Which comes first, the chicken or the egg? Charge weight or seating depth…
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