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Rifles, Reloading, Optics, Equipment
Reloading
Best methods to create low ES and SD hand loads with the easiest and simplest reloading work up.
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<blockquote data-quote="stljc2" data-source="post: 1734541" data-attributes="member: 96586"><p>The method I utilized to find my low Es and Sd follows.</p><p>1) Utilizing my overall length gauge, modified case and the bullet i intend to load and find out where the lands are in relation to the ogive of my bullet.</p><p>2)size virgin Lapua brass, Clean to remove lube, set new primers</p><p>3) load charges (3 cases per charge, starting with berger recommended min) load up to with in max charge with .5 grain increments. This is testing for max pressure.</p><p>4) seat 140 gr VLD -H or Elite Hunters 20 thousands off the lands. </p><p>5) Check each and every bullet for correct CBTO.( Note I color code each bullet shell on the primer with a magic marker. If I run out of single color then I start utilizing 2 colors. The paper record is marked also.</p><p>6) Shoot separate bullseye for each loading. Utilizing a chronograph record each shots ft/s, at the end or 3 shots record Es, Sd and velocity avg.</p><p>7) As you shoot, of course, take time to let things cool down some. Keep track of which bull you shot with which loading and check each shell casing for signs of over pressure.</p><p>8) If you start to encounter stiff bolt and ejector marks STOP..your at the top pressure. Any further and your gambling with your safety. </p><p>9) evaluate your info..look for good groups.</p><p>10) pick the top 2 groups.</p><p>11) Load up, after going through steps 2-5 except your now using a 2nd fireing of the brass..This is where I anneal my brass if I feel it needs it, before loading up and setting a new primer. PS Yes I do clean my primer pockets when I clean my brass. When I anneal I clean it again.</p><p>12) When I load the next round I go .2 gr at a time..looking for the best group. Not every best group is going to have the best Es and Sd.</p><p>13) Follow procedure 6 through 9...</p><p>14) Sometimes a .1 gr difference in the charge can be critical..be careful in your evaluation.</p></blockquote><p></p>
[QUOTE="stljc2, post: 1734541, member: 96586"] The method I utilized to find my low Es and Sd follows. 1) Utilizing my overall length gauge, modified case and the bullet i intend to load and find out where the lands are in relation to the ogive of my bullet. 2)size virgin Lapua brass, Clean to remove lube, set new primers 3) load charges (3 cases per charge, starting with berger recommended min) load up to with in max charge with .5 grain increments. This is testing for max pressure. 4) seat 140 gr VLD -H or Elite Hunters 20 thousands off the lands. 5) Check each and every bullet for correct CBTO.( Note I color code each bullet shell on the primer with a magic marker. If I run out of single color then I start utilizing 2 colors. The paper record is marked also. 6) Shoot separate bullseye for each loading. Utilizing a chronograph record each shots ft/s, at the end or 3 shots record Es, Sd and velocity avg. 7) As you shoot, of course, take time to let things cool down some. Keep track of which bull you shot with which loading and check each shell casing for signs of over pressure. 8) If you start to encounter stiff bolt and ejector marks STOP..your at the top pressure. Any further and your gambling with your safety. 9) evaluate your info..look for good groups. 10) pick the top 2 groups. 11) Load up, after going through steps 2-5 except your now using a 2nd fireing of the brass..This is where I anneal my brass if I feel it needs it, before loading up and setting a new primer. PS Yes I do clean my primer pockets when I clean my brass. When I anneal I clean it again. 12) When I load the next round I go .2 gr at a time..looking for the best group. Not every best group is going to have the best Es and Sd. 13) Follow procedure 6 through 9... 14) Sometimes a .1 gr difference in the charge can be critical..be careful in your evaluation. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Best methods to create low ES and SD hand loads with the easiest and simplest reloading work up.
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