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Rifles, Reloading, Optics, Equipment
Reloading
30-338 winchester magnum
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<blockquote data-quote="Long Time Long Ranger" data-source="post: 363920" data-attributes="member: 505"><p>JEcustom, With the new powders available today the 30-338 winny and the 308 norma may get more velocity with the heavier bullets. I was comparing what me and others are getting out of the 300 wsm now with what I was able to do with the same 26" barrel length in the 308 norma and 30-338 win mag 20-25 years ago. About the same velocities with bullets up to 200 grains in a more compact case that is just as accurate as the 30-338. With longer barrel lengths that would allow more burn out of a bigger dose of slow burning powder I can see where the 30-338 and 308 norma could get an advantage with the heavier bullets, particularly with some of the newer slow burn rates out there. I haven't tried a 300wsm, 308 norma or 30-338 with a barrel longer than 26" so I would not know. </p><p></p><p>Some guys are getting right at 300 win mag velocities out of the 300 wsm which is a bigger case than the 308 norma or 30-338 win mag. With a 25" barrel in 300 wsm I am getting well over 3400 fps with the 150 grain, over 3100 fps with the 180 and over 2900 fps with the 200. I would never have believed that just looking at the little short mag case but after shooting the daylights out of a couple of them I am a believer now in the short mag. They allow you to use a faster powder which gets top velocity in the shorter, lighter barrels. </p><p></p><p>I appreciate your opinions on here and enjoy reading your replies. Let me know if you still shoot the 30-338 and what you can do with it with some of the new powders. It has always been an extremely accurate chambering and it would be interesting to know what it would do. Also the 308 norma since they are ballistic twins with slightly different cases. It would be fun to bring back some of the older rounds that people don't shoot a lot anymore and see what they do with the newer powders. If the new design cartridges are better or the powders we use now are the difference makers.</p></blockquote><p></p>
[QUOTE="Long Time Long Ranger, post: 363920, member: 505"] JEcustom, With the new powders available today the 30-338 winny and the 308 norma may get more velocity with the heavier bullets. I was comparing what me and others are getting out of the 300 wsm now with what I was able to do with the same 26" barrel length in the 308 norma and 30-338 win mag 20-25 years ago. About the same velocities with bullets up to 200 grains in a more compact case that is just as accurate as the 30-338. With longer barrel lengths that would allow more burn out of a bigger dose of slow burning powder I can see where the 30-338 and 308 norma could get an advantage with the heavier bullets, particularly with some of the newer slow burn rates out there. I haven't tried a 300wsm, 308 norma or 30-338 with a barrel longer than 26" so I would not know. Some guys are getting right at 300 win mag velocities out of the 300 wsm which is a bigger case than the 308 norma or 30-338 win mag. With a 25" barrel in 300 wsm I am getting well over 3400 fps with the 150 grain, over 3100 fps with the 180 and over 2900 fps with the 200. I would never have believed that just looking at the little short mag case but after shooting the daylights out of a couple of them I am a believer now in the short mag. They allow you to use a faster powder which gets top velocity in the shorter, lighter barrels. I appreciate your opinions on here and enjoy reading your replies. Let me know if you still shoot the 30-338 and what you can do with it with some of the new powders. It has always been an extremely accurate chambering and it would be interesting to know what it would do. Also the 308 norma since they are ballistic twins with slightly different cases. It would be fun to bring back some of the older rounds that people don't shoot a lot anymore and see what they do with the newer powders. If the new design cartridges are better or the powders we use now are the difference makers. [/QUOTE]
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30-338 winchester magnum
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