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The Range
Ammo & Reloading
Well, I began my reloading startup today.
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<blockquote data-quote="Shadowrider" data-source="post: 1442817" data-attributes="member: 3099"><p>A tenth won't be a big deal in a large capacity case. It can make a difference in a small case like 9mm for instance.</p><p></p><p>I was just reading an interesting thread somewhere, maybe snipershide, can't remember.</p><p></p><p>The guy took 2 boxes of Federal Gold Medal Match .308 168SMK ammo and did some chrono testing. He took 1 box and pulled the bullet on each round one at a time, weighing the powder charge, recording the info and re-seating the bullet. (He put each round back together individually just like it was in the box.) He found as much as .4 grains variation in powder charge through the box. The chrono showed an extreme spread of 5 FPS which is mind blowing good.</p><p></p><p>The second box he pulled all the bullets and weighed the powder as a total for all 20 rounds. He then reassembled them by dividing the total weight of the powder divided by 20 and loaded that much powder in each round to get them all exactly the same. The chrono showed an ES of 4 FPS.</p><p></p><p>These ES numbers are astoundingly good. But then Federal GMM .308 ammo has always been thought to have some sort of juju going on with it. It's got a very long history of being the best off the shelf ammo in .308 accuracywise. If I ever get a load that consistent I'll consider it a great accomplishment, but with my luck it will only shoot so so in my rifle.</p></blockquote><p></p>
[QUOTE="Shadowrider, post: 1442817, member: 3099"] A tenth won't be a big deal in a large capacity case. It can make a difference in a small case like 9mm for instance. I was just reading an interesting thread somewhere, maybe snipershide, can't remember. The guy took 2 boxes of Federal Gold Medal Match .308 168SMK ammo and did some chrono testing. He took 1 box and pulled the bullet on each round one at a time, weighing the powder charge, recording the info and re-seating the bullet. (He put each round back together individually just like it was in the box.) He found as much as .4 grains variation in powder charge through the box. The chrono showed an extreme spread of 5 FPS which is mind blowing good. The second box he pulled all the bullets and weighed the powder as a total for all 20 rounds. He then reassembled them by dividing the total weight of the powder divided by 20 and loaded that much powder in each round to get them all exactly the same. The chrono showed an ES of 4 FPS. These ES numbers are astoundingly good. But then Federal GMM .308 ammo has always been thought to have some sort of juju going on with it. It's got a very long history of being the best off the shelf ammo in .308 accuracywise. If I ever get a load that consistent I'll consider it a great accomplishment, but with my luck it will only shoot so so in my rifle. [/QUOTE]
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Well, I began my reloading startup today.
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