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Extreme Long Range Hunting & Shooting (ELR)
Primer Seating Data for Extreme Long Range
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<blockquote data-quote="Alex Wheeler" data-source="post: 1512938" data-attributes="member: 101859"><p>I think we should understand what we want to achieve. There are a couple aspects to primer seating. One is the distance the firing pin travels to strike the primer. There are vibrations involved with ignition and we want to keep them consistent shot to shot. So consistent shoulder bump, primer pocket depth and seated primer height are important for consistent firing pin travel. Its not just about primer height because they may vary in height and a crush fit is also important to having consistent ignition of the primer. A hard seated primer and a light seated primer will not shoot the same. So this comes back to seating by feel. The K&M is an option, I have one but prefer the better feel I get from the 21st century. After they are seated you can now sort them by primer depth which will be the variations in the primer itself. The depths will be very close. The 2k match is just getting started and competitors will be doing alot of testing over the years to see what matters at this range now that there is a group match that demands that precision.</p></blockquote><p></p>
[QUOTE="Alex Wheeler, post: 1512938, member: 101859"] I think we should understand what we want to achieve. There are a couple aspects to primer seating. One is the distance the firing pin travels to strike the primer. There are vibrations involved with ignition and we want to keep them consistent shot to shot. So consistent shoulder bump, primer pocket depth and seated primer height are important for consistent firing pin travel. Its not just about primer height because they may vary in height and a crush fit is also important to having consistent ignition of the primer. A hard seated primer and a light seated primer will not shoot the same. So this comes back to seating by feel. The K&M is an option, I have one but prefer the better feel I get from the 21st century. After they are seated you can now sort them by primer depth which will be the variations in the primer itself. The depths will be very close. The 2k match is just getting started and competitors will be doing alot of testing over the years to see what matters at this range now that there is a group match that demands that precision. [/QUOTE]
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Primer Seating Data for Extreme Long Range
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