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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Rem 700 action how much chamber pressure is safe?
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<blockquote data-quote="Fiftydriver" data-source="post: 269382" data-attributes="member: 10"><p>One thing I did when developing my wildcats based on the 338 Lapua case was to do some load development using the Norma made Lapua case which is a great case but much softer then the Lapua and it will tell you more about chamber pressure then the Lapua case.</p><p> </p><p>In fact, the Norma cases are very similiar in hardness as the Remington RUM cases. Good cases and they will certainly tell you when your over the top.</p><p> </p><p>I then used that data as a baseline for top end loads even when using the Lapua case. </p><p> </p><p>Basically, look at the chambering your using, compare it to similiar chamberings and you can basically figure out where you should be. In your case, you have a 300 Lapua basically.</p><p> </p><p>If you look at the parent case, the 338 Lapua and compare it to a 338 Edge, the performance is nearly identical with the Lapua maybe getting a 50 fps boost in performance, MAYBE.</p><p> </p><p>With that in mind, you know what to expect comparing the 338 Lapua to the 338 Edge which is basically the 338-300 RUM.</p><p> </p><p>If you know that, you can expect that the 30-338 Lapua will basically get you the same performance as the 300 RUM, again, perhaps 50-75 fps more.</p><p> </p><p>Now if you have an improved version, you will get 100-125 fps more then the RUM. You just have to take a realistic look at whats out there with similiar case capacity.</p><p> </p><p>If your getting 400 fps over what the 300 RUM will get you, obviously, your overloading the 300-338 Lapua. Just need a realistic point of view and some common sense. That with the help of a chronograph and you will be in good shape.</p></blockquote><p></p>
[QUOTE="Fiftydriver, post: 269382, member: 10"] One thing I did when developing my wildcats based on the 338 Lapua case was to do some load development using the Norma made Lapua case which is a great case but much softer then the Lapua and it will tell you more about chamber pressure then the Lapua case. In fact, the Norma cases are very similiar in hardness as the Remington RUM cases. Good cases and they will certainly tell you when your over the top. I then used that data as a baseline for top end loads even when using the Lapua case. Basically, look at the chambering your using, compare it to similiar chamberings and you can basically figure out where you should be. In your case, you have a 300 Lapua basically. If you look at the parent case, the 338 Lapua and compare it to a 338 Edge, the performance is nearly identical with the Lapua maybe getting a 50 fps boost in performance, MAYBE. With that in mind, you know what to expect comparing the 338 Lapua to the 338 Edge which is basically the 338-300 RUM. If you know that, you can expect that the 30-338 Lapua will basically get you the same performance as the 300 RUM, again, perhaps 50-75 fps more. Now if you have an improved version, you will get 100-125 fps more then the RUM. You just have to take a realistic look at whats out there with similiar case capacity. If your getting 400 fps over what the 300 RUM will get you, obviously, your overloading the 300-338 Lapua. Just need a realistic point of view and some common sense. That with the help of a chronograph and you will be in good shape. [/QUOTE]
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Rem 700 action how much chamber pressure is safe?
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