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Rifles, Reloading, Optics, Equipment
Reloading
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<blockquote data-quote="rotorhead" data-source="post: 128295" data-attributes="member: 5078"><p>dryfarmer, The seating depth will change how the bullet enters the rifling. Some bullet rifle combinations like a jump and others do not. A good example is the barnes triple shock bullets they like a jump for some reason if you set them real close they generally do not shoot well. It varies with every bullet/rifle combination. With out getting into too much garble about barrel frequency certian barrels like certian frequencies and you can adjust the bullet in the case to try and find that "sweet spot" I have a 223 that likes the bullets just barley touching the lands which isn't unusual on that caliber but I have seen a 22-250 that really liked .050 off the lands. If I set my 223 at 0.050 the group will open up to an inch but if I set it at the lands it will shoot 1/4 at 100yds. This is a factory rifle if you can believe that. In my experiance the seating depth is one of the larges variables to getting an accurate cartridge. That being said, being able to find a powder with a large window to work with is important as well. The interesting thing is the entire load. You just can't tell what it is that is going to get you there. I have had a primer issue before with a buddy's 22-250. I'm not sure if the primer was to hot or what but I went to the remington primer,"this was the only change" and the group tightend up nicely. This is the same gun that like to be set back off the lands. The bottom line is .. It sure is fun looking for that perfect combination isn't it?</p><p></p><p>Happy Thanks giving</p><p>RH</p></blockquote><p></p>
[QUOTE="rotorhead, post: 128295, member: 5078"] dryfarmer, The seating depth will change how the bullet enters the rifling. Some bullet rifle combinations like a jump and others do not. A good example is the barnes triple shock bullets they like a jump for some reason if you set them real close they generally do not shoot well. It varies with every bullet/rifle combination. With out getting into too much garble about barrel frequency certian barrels like certian frequencies and you can adjust the bullet in the case to try and find that "sweet spot" I have a 223 that likes the bullets just barley touching the lands which isn't unusual on that caliber but I have seen a 22-250 that really liked .050 off the lands. If I set my 223 at 0.050 the group will open up to an inch but if I set it at the lands it will shoot 1/4 at 100yds. This is a factory rifle if you can believe that. In my experiance the seating depth is one of the larges variables to getting an accurate cartridge. That being said, being able to find a powder with a large window to work with is important as well. The interesting thing is the entire load. You just can't tell what it is that is going to get you there. I have had a primer issue before with a buddy's 22-250. I'm not sure if the primer was to hot or what but I went to the remington primer,"this was the only change" and the group tightend up nicely. This is the same gun that like to be set back off the lands. The bottom line is .. It sure is fun looking for that perfect combination isn't it? Happy Thanks giving RH [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
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