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Rifles, Reloading, Optics, Equipment
Reloading
Question on finding pressure
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<blockquote data-quote="Csbc4fun" data-source="post: 3038693" data-attributes="member: 114785"><p>Lots of "Advice" above. Randomly guessing at a powder charge, then tuning with seating depth is not for me. I can tune any powder charge and make the groups better, but why? Minimize the rabbit holes.</p><p></p><p> I will just state what works for me…</p><p></p><p>Load one round each in 0.5 grain increments. I write grains on the case with sharpie. Shoot until pressure signs are obvious, not maybe. If you are not sure, shoot the next round. Know for certain where pressure is for your load. Document where pressure was found. Discard pressure case and the two below it.</p><p></p><p>Drop down 3.0 grains and load one round each in 0.2 grain increments up to within one grain of pressure. Shoot, measure fps and graph out findings. Now you can see your node and logically select a powder charge in the flat spot node. Up to this point, I do not shoot for groups as that would be a complete waste of time and components. </p><p></p><p>Now load 50 rounds with that selected powder charge at the longest (closest to the lands) that you would ever shoot, 0.020" off the lands for me.</p><p>Take press and seating die to the range… seat three 0.003" deeper and shoot them for groups. Continue seating deeper by 0.003" and checking groups. Track each target group to the seating depth used for those shots. (Targets don't lie) When there is no paper between shots, repeat that seating depth to double check. Try another group 0.003" deeper, if it is a larger group. Done! </p><p></p><p>Works for me, good luck and enjoy the journey!</p></blockquote><p></p>
[QUOTE="Csbc4fun, post: 3038693, member: 114785"] Lots of “Advice” above. Randomly guessing at a powder charge, then tuning with seating depth is not for me. I can tune any powder charge and make the groups better, but why? Minimize the rabbit holes. I will just state what works for me… Load one round each in 0.5 grain increments. I write grains on the case with sharpie. Shoot until pressure signs are obvious, not maybe. If you are not sure, shoot the next round. Know for certain where pressure is for your load. Document where pressure was found. Discard pressure case and the two below it. Drop down 3.0 grains and load one round each in 0.2 grain increments up to within one grain of pressure. Shoot, measure fps and graph out findings. Now you can see your node and logically select a powder charge in the flat spot node. Up to this point, I do not shoot for groups as that would be a complete waste of time and components. Now load 50 rounds with that selected powder charge at the longest (closest to the lands) that you would ever shoot, 0.020” off the lands for me. Take press and seating die to the range… seat three 0.003” deeper and shoot them for groups. Continue seating deeper by 0.003” and checking groups. Track each target group to the seating depth used for those shots. (Targets don’t lie) When there is no paper between shots, repeat that seating depth to double check. Try another group 0.003” deeper, if it is a larger group. Done! Works for me, good luck and enjoy the journey! [/QUOTE]
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Reloading
Question on finding pressure
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