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Rifles, Reloading, Optics, Equipment
Reloading
Extreme Spread
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<blockquote data-quote="4xforfun" data-source="post: 435512" data-attributes="member: 9172"><p>The best ways to reduce ES is with neck tension and seating depth. I am going to assume that all of your brass is from the same mfgr and is the same age. I weight sort mine and do the usual match prep.</p><p> </p><p>Seating depth......Are you using regular hunting bullets or VLD type, as in Bergers? First thing to look at is what kind of room do you have in your mag/clip....can you actualy get to the lands and still fit in the mag well/clip. I shoot VLD bullets, which like to be jammed into the lands. Be carfull here....to much jam with not much neck tension puts you at risk of sticking a bullet in your chamber should you decide to unchamber a loaded round. The action usually ends up full of powder. I start (with VLD bullets) at full jam....which ends up around .020 - .030 thou INTO the lands. I work my way shorter. If you are shooting regular bullets i would start at about .020 OFF of the lands.</p><p> </p><p>Neck tension ....If you are worryied about ES and you do not have bushing dies....get them...both a FL and a neck die. As far as which bushings to use....measure the neck diamiter of a couple of loaded rounds....If it's .312 get a .310, bushing 308 bushing and .306 bushing. .314........ .312, .310, and .308. ect... Play with them. </p><p> </p><p>I recomend shooting your tests at longer ranges...300 yards of more. Shoot everything over a chrono.</p><p> </p><p>Good luck, and have fun!!!!</p></blockquote><p></p>
[QUOTE="4xforfun, post: 435512, member: 9172"] The best ways to reduce ES is with neck tension and seating depth. I am going to assume that all of your brass is from the same mfgr and is the same age. I weight sort mine and do the usual match prep. Seating depth......Are you using regular hunting bullets or VLD type, as in Bergers? First thing to look at is what kind of room do you have in your mag/clip....can you actualy get to the lands and still fit in the mag well/clip. I shoot VLD bullets, which like to be jammed into the lands. Be carfull here....to much jam with not much neck tension puts you at risk of sticking a bullet in your chamber should you decide to unchamber a loaded round. The action usually ends up full of powder. I start (with VLD bullets) at full jam....which ends up around .020 - .030 thou INTO the lands. I work my way shorter. If you are shooting regular bullets i would start at about .020 OFF of the lands. Neck tension ....If you are worryied about ES and you do not have bushing dies....get them...both a FL and a neck die. As far as which bushings to use....measure the neck diamiter of a couple of loaded rounds....If it's .312 get a .310, bushing 308 bushing and .306 bushing. .314........ .312, .310, and .308. ect... Play with them. I recomend shooting your tests at longer ranges...300 yards of more. Shoot everything over a chrono. Good luck, and have fun!!!! [/QUOTE]
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