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Rifles, Reloading, Optics, Equipment
Reloading
Picking the best powder, powder selection
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<blockquote data-quote="g0rd0" data-source="post: 966000" data-attributes="member: 44168"><p>as I experiment with different loads I start low, load 3 and go up in 0.5grn inc. load 3 exct. until I get to max. Once I find the best group I then tweek it up and down 0.2grn. and try for a better group.</p><p>As I shoot my first 3 I check for preasure signs (cratered primer fatuged webs, ect) If all passes I go with my best group and as above tweek with 0.2 grn +/- then I start with changing seating depth.</p><p>My most accurate load with my 7rm is 67.0grn IMR7828, cci mag primer neck sized with the bullet (150 grn etip) just placed in the neck so that the bullet is seated on the rifleing when chambered. Yes there are many who say that etips preform beast at 30thou off the lands but not with my rifle. Constant 3/4" groups @100mt (2995 to 3010fps)</p><p>For 175 grn speer s.p. it likes 60.0 grn RL22 std primer 25 thou off the lands FL sized. Constant 1+" groups @100mt. I have yet to chrono this load</p><p>And get this a 139 grn Hornady SP neck sized std primer 47.0grn IMR3031 bullet again just in the neck to ensure that it contacts the rifleing when chambered -3/4" group @100mt. BUT, this load burns HOT by that I mean that it heats up the barrel a lot. But, still shows no sign of preasure excess. I have not chronoed this ether.</p><p>The 150 grn load that I mentioned I worked out myself using a Prowley slide rule The other 2 can be found in manuals. I got my load info from Lee 2nd edition, Lyman 45th edition and on line.</p><p>Donot take my word for load data I assume no responseability use your published data and common sense.</p><p>Enjoy your reloading I know that your ammo will out perform factory loads<img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /></p></blockquote><p></p>
[QUOTE="g0rd0, post: 966000, member: 44168"] as I experiment with different loads I start low, load 3 and go up in 0.5grn inc. load 3 exct. until I get to max. Once I find the best group I then tweek it up and down 0.2grn. and try for a better group. As I shoot my first 3 I check for preasure signs (cratered primer fatuged webs, ect) If all passes I go with my best group and as above tweek with 0.2 grn +/- then I start with changing seating depth. My most accurate load with my 7rm is 67.0grn IMR7828, cci mag primer neck sized with the bullet (150 grn etip) just placed in the neck so that the bullet is seated on the rifleing when chambered. Yes there are many who say that etips preform beast at 30thou off the lands but not with my rifle. Constant 3/4" groups @100mt (2995 to 3010fps) For 175 grn speer s.p. it likes 60.0 grn RL22 std primer 25 thou off the lands FL sized. Constant 1+" groups @100mt. I have yet to chrono this load And get this a 139 grn Hornady SP neck sized std primer 47.0grn IMR3031 bullet again just in the neck to ensure that it contacts the rifleing when chambered -3/4" group @100mt. BUT, this load burns HOT by that I mean that it heats up the barrel a lot. But, still shows no sign of preasure excess. I have not chronoed this ether. The 150 grn load that I mentioned I worked out myself using a Prowley slide rule The other 2 can be found in manuals. I got my load info from Lee 2nd edition, Lyman 45th edition and on line. Donot take my word for load data I assume no responseability use your published data and common sense. Enjoy your reloading I know that your ammo will out perform factory loads:) [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Picking the best powder, powder selection
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