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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
First Build! Remington 700 Long Range 7mm. Questions
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<blockquote data-quote="WildRose" data-source="post: 1278296" data-attributes="member: 30902"><p>If the bolt wouldn't close you have in all likelihood a head space issue rather than a COAL issue.</p><p></p><p>He's probably been just neck sizing only or partially full length resizing his brass.</p><p></p><p>It's never a good idea to shoot someone else's reloads unless they've been worked up slowly for both rifles. You can get yourself into trouble in a hurry.</p><p></p><p>Your maximum COAL is determined primarily by your magazine length. If I remember right the max for a BDL magazine is around 3.74. There are some aftermarket magazines that are a bit longer to allow for the seating of longer heavy for caliber bullets than the factory rifles are set up for.</p><p></p><p>The next consideration is the length of your throat vs the length of your base to ogive measurement. It doesn't matter how long your magazine is, you will be limited by the maximum length at which your chosen bullet's ogive begins to engage the lands. </p><p></p><p>Hornady makes some maximum length gauges and modified rounds which you can use to determine max base to ogive length or you can do it yourself with some empty resized cases and bullets.</p><p></p><p>The next consideration then is the maximum length at which you can both load and smoothly feed rounds from your magazine which is usually a bit shorter than your maximum base to ogive determined length or maximum length at which you can fit them into the magazine at all.</p><p></p><p>The latter tends to be longer with controlled round feed actions than the push feed actions because with the CRF action the cartridge head locks into the bolt as soon as it begins to pop up and then feeds straight into the action.</p><p></p><p>Hopefully this helps.</p></blockquote><p></p>
[QUOTE="WildRose, post: 1278296, member: 30902"] If the bolt wouldn't close you have in all likelihood a head space issue rather than a COAL issue. He's probably been just neck sizing only or partially full length resizing his brass. It's never a good idea to shoot someone else's reloads unless they've been worked up slowly for both rifles. You can get yourself into trouble in a hurry. Your maximum COAL is determined primarily by your magazine length. If I remember right the max for a BDL magazine is around 3.74. There are some aftermarket magazines that are a bit longer to allow for the seating of longer heavy for caliber bullets than the factory rifles are set up for. The next consideration is the length of your throat vs the length of your base to ogive measurement. It doesn't matter how long your magazine is, you will be limited by the maximum length at which your chosen bullet's ogive begins to engage the lands. Hornady makes some maximum length gauges and modified rounds which you can use to determine max base to ogive length or you can do it yourself with some empty resized cases and bullets. The next consideration then is the maximum length at which you can both load and smoothly feed rounds from your magazine which is usually a bit shorter than your maximum base to ogive determined length or maximum length at which you can fit them into the magazine at all. The latter tends to be longer with controlled round feed actions than the push feed actions because with the CRF action the cartridge head locks into the bolt as soon as it begins to pop up and then feeds straight into the action. Hopefully this helps. [/QUOTE]
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First Build! Remington 700 Long Range 7mm. Questions
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