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Rifles, Reloading, Optics, Equipment
Reloading
Difference between 338 Edge and 338 RUM?
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<blockquote data-quote="Long Time Long Ranger" data-source="post: 694377" data-attributes="member: 505"><p>The primary difference is the 338-300 RUM is a wildcat cartridge requiring extra time and effort to load. It is also a little longer making it more difficult to load long 338 bullets and make them feed through the rem 700 action. The cost of reloading is higher with the 338-300 because of dies and necking up brass. 338 RUM dies are a fraction of 338-300 dies since it is a standard cartridge and brass can be bought over the counter. Other than that they are virtually identical.</p><p> </p><p>Remington tested this extensively before they came out with the 338 RUM. They solved the feeding problems with the long bullets in the 700 action by slightly shortening the case. They found that there was negligible performance loss by doing this. Either will do anything the other will performance wise. After all my work developing the 338-300 RUM from 1998-2001 Remington through us a curve ball and introduced the shortenned version. I talked with them at length at the shot show in 2001 about their decision to shorten the case and was skeptical at first. However after extensive testing of my own at my range Remington was right. The 338 RUM is the better cartridge. It feeds better and the performance is so close there is more difference between individual barrels than the two cartridges. </p><p> </p><p>I spent quite a lot of time developing the 338-300 RUM with different throats until I had it right. To my knowledge I was the first person developing this cartridge and producing it in quantity. I was hyping it pretty hard to gunsmith friends around the country and Sierra bullets as I was testing the new 300 grain SMK at the time and was the only one to their knowledge working on it that hard. I built numerous rifles for elk hunters from 1998-2001 in 338-300 RUM. Probably the first elk ever killed with one was with one of my rifles. But when we shot them side by side on my range I never sold another 338-300 RUM barrel after 2001. The 338 RUM did the same thing in a factory cartridge and nobody saw a need to go to the extra trouble and expense required necking the 338-300 after seeing all the side by side testing in 2001. They even shot the same accuracy load of 92.5 grains of the old H-1000 with the 300 SMK which was the best bullet at the time for long range in it and what I designed the throat around. 93.5 grains Retumbo also shot great in both.</p><p> </p><p>Many of the original builders and shooters of the cartridge could not understand the popularity numerous gunshops had with the cartridge after many quit producing it in 2001 with the introduction of the 338 RUM. Although it is a great cartridge and nobody can deny that it does nothing the factory version doesn't do while being more trouble to work with. So there is a little background from one of the first guys to work with both cartridges and test them side by side. I personaly have shot and hunted with the 338 RUM since 2001 while my 338-300 RUM rifles have collected dust. I did pull one out of mothballs this summer to do some load testing with some Cutting Edge bullets to see how they performed in this chambering with the way I had the throat set for the 300 smk.</p><p> </p><p>And the heck of it is Remington designed the 300 RUM off ole Abry's 338 cartridge up in Canada which was the first 338-300 RUM in the 1980's before there was a 300 RUM.</p></blockquote><p></p>
[QUOTE="Long Time Long Ranger, post: 694377, member: 505"] The primary difference is the 338-300 RUM is a wildcat cartridge requiring extra time and effort to load. It is also a little longer making it more difficult to load long 338 bullets and make them feed through the rem 700 action. The cost of reloading is higher with the 338-300 because of dies and necking up brass. 338 RUM dies are a fraction of 338-300 dies since it is a standard cartridge and brass can be bought over the counter. Other than that they are virtually identical. Remington tested this extensively before they came out with the 338 RUM. They solved the feeding problems with the long bullets in the 700 action by slightly shortening the case. They found that there was negligible performance loss by doing this. Either will do anything the other will performance wise. After all my work developing the 338-300 RUM from 1998-2001 Remington through us a curve ball and introduced the shortenned version. I talked with them at length at the shot show in 2001 about their decision to shorten the case and was skeptical at first. However after extensive testing of my own at my range Remington was right. The 338 RUM is the better cartridge. It feeds better and the performance is so close there is more difference between individual barrels than the two cartridges. I spent quite a lot of time developing the 338-300 RUM with different throats until I had it right. To my knowledge I was the first person developing this cartridge and producing it in quantity. I was hyping it pretty hard to gunsmith friends around the country and Sierra bullets as I was testing the new 300 grain SMK at the time and was the only one to their knowledge working on it that hard. I built numerous rifles for elk hunters from 1998-2001 in 338-300 RUM. Probably the first elk ever killed with one was with one of my rifles. But when we shot them side by side on my range I never sold another 338-300 RUM barrel after 2001. The 338 RUM did the same thing in a factory cartridge and nobody saw a need to go to the extra trouble and expense required necking the 338-300 after seeing all the side by side testing in 2001. They even shot the same accuracy load of 92.5 grains of the old H-1000 with the 300 SMK which was the best bullet at the time for long range in it and what I designed the throat around. 93.5 grains Retumbo also shot great in both. Many of the original builders and shooters of the cartridge could not understand the popularity numerous gunshops had with the cartridge after many quit producing it in 2001 with the introduction of the 338 RUM. Although it is a great cartridge and nobody can deny that it does nothing the factory version doesn't do while being more trouble to work with. So there is a little background from one of the first guys to work with both cartridges and test them side by side. I personaly have shot and hunted with the 338 RUM since 2001 while my 338-300 RUM rifles have collected dust. I did pull one out of mothballs this summer to do some load testing with some Cutting Edge bullets to see how they performed in this chambering with the way I had the throat set for the 300 smk. And the heck of it is Remington designed the 300 RUM off ole Abry's 338 cartridge up in Canada which was the first 338-300 RUM in the 1980's before there was a 300 RUM. [/QUOTE]
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Difference between 338 Edge and 338 RUM?
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