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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Perfect Bullet Weight/Velocity Combination
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<blockquote data-quote="Michael Eichele" data-source="post: 30091" data-attributes="member: 1007"><p>According to my calculations, the differance between the 2 examples you gave, except I used a 300 yard zero was like this:</p><p></p><p>300 RUM -9.68 @ 400 yards w/2459 FPE</p><p></p><p>338 RUM -9.80 @ 400 yards w/2270 FPE</p><p></p><p>Please check your math.</p><p></p><p>Also, if you really are able to get 3200+ FPS out of your 338 RUM, please tell us what kind of bbl you are using. The qualities of ballistic performance enhanced by your bbl would also be extended to the 300 RUM with the same bbl type ie legth twist ect...</p><p></p><p>If you are using a factory rifle, I think at 3200 FPS w/a 225 you might have a bomb on your hands.</p><p></p><p>Also remember that even though you have more area inside the bore to expand powder, you also have less case capacity in the 338 RUM vs the 300 RUM. The 338 is not a necked up 300 RUM. Typically, the 300 RUM and the 338 RUM will shoot bullets of the same weight about the same velocity. Barrel being equal and all.</p><p></p><p>Any way, I am not saying either is better than the other. Each has their own pros and cons. Each will do somthing great if used for the purpose intended.</p><p></p><p>I for one dont have the need or desire to shoot bullets over 190 grains. I would use the 300 RUM If I need bullets in the 250 grain range I would use the 338 RUM or better yet the 338 Lapua</p><p> <img src="http://images/icons/smile.gif" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>[ 12-30-2003: Message edited by: meichele ]</p></blockquote><p></p>
[QUOTE="Michael Eichele, post: 30091, member: 1007"] According to my calculations, the differance between the 2 examples you gave, except I used a 300 yard zero was like this: 300 RUM -9.68 @ 400 yards w/2459 FPE 338 RUM -9.80 @ 400 yards w/2270 FPE Please check your math. Also, if you really are able to get 3200+ FPS out of your 338 RUM, please tell us what kind of bbl you are using. The qualities of ballistic performance enhanced by your bbl would also be extended to the 300 RUM with the same bbl type ie legth twist ect... If you are using a factory rifle, I think at 3200 FPS w/a 225 you might have a bomb on your hands. Also remember that even though you have more area inside the bore to expand powder, you also have less case capacity in the 338 RUM vs the 300 RUM. The 338 is not a necked up 300 RUM. Typically, the 300 RUM and the 338 RUM will shoot bullets of the same weight about the same velocity. Barrel being equal and all. Any way, I am not saying either is better than the other. Each has their own pros and cons. Each will do somthing great if used for the purpose intended. I for one dont have the need or desire to shoot bullets over 190 grains. I would use the 300 RUM If I need bullets in the 250 grain range I would use the 338 RUM or better yet the 338 Lapua [img]images/icons/smile.gif[/img] [ 12-30-2003: Message edited by: meichele ] [/QUOTE]
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Perfect Bullet Weight/Velocity Combination
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