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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
338-300 Win mag???
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<blockquote data-quote="Long Time Long Ranger" data-source="post: 429418" data-attributes="member: 505"><p>The 338-300 winchester falls exactly half way between the 338 win mag and the 340 wby on average. That is 100 fps faster than the 338 winchester and 100 fps slower than the 340 wby. That is the reason I could not understand the wildcat. Unless you had one of the magnum actions designed up to the 300 win mag but not long enough for the full length magnums like the wby or any of the full length H&H cases. Then you could get 100 fps over the 338 winchester. Just not worth it. Back when the 8mm rem mag came out in 1977 many of us necked it to 338 to duplicate the 340 wby with cheap remington brass. That was the purpose for it. The 338-300 winchester is a good hunting cartridge just not worth the trouble with the 338 winchester and 340 wby out there or the 338-8mm rem mag for cheaper brass to duplicate the 340 wby.</p><p></p><p>Bcmoli, you have an incredibly fast way beyond the norm rifle. Like I say your rifle is an excellent big game rifle. You are shooting ultramag velocities out of a rifle less powerful on average than a 340 wby. My 340 wby shoots a 215 grain sierra 3287 fps with 95 grains of 7828 for an accuracy load. The 250 grain accuracy load is 3056 fps with 91 grains of 7828. My 338 RUM shoots the 225 at 3260 fps max and my two 338-300 ultramags shoot the 225 right at 3300 fps. All of those velocities are with a 28" barrel. I like your long throat design and that is where you are getting the extra velocity. You definitely have done your homework and have a very nice hunting rifle. What might not make sense to me may be the greatest thing around for the next guy to wildcat. That is why they make all kinds.</p></blockquote><p></p>
[QUOTE="Long Time Long Ranger, post: 429418, member: 505"] The 338-300 winchester falls exactly half way between the 338 win mag and the 340 wby on average. That is 100 fps faster than the 338 winchester and 100 fps slower than the 340 wby. That is the reason I could not understand the wildcat. Unless you had one of the magnum actions designed up to the 300 win mag but not long enough for the full length magnums like the wby or any of the full length H&H cases. Then you could get 100 fps over the 338 winchester. Just not worth it. Back when the 8mm rem mag came out in 1977 many of us necked it to 338 to duplicate the 340 wby with cheap remington brass. That was the purpose for it. The 338-300 winchester is a good hunting cartridge just not worth the trouble with the 338 winchester and 340 wby out there or the 338-8mm rem mag for cheaper brass to duplicate the 340 wby. Bcmoli, you have an incredibly fast way beyond the norm rifle. Like I say your rifle is an excellent big game rifle. You are shooting ultramag velocities out of a rifle less powerful on average than a 340 wby. My 340 wby shoots a 215 grain sierra 3287 fps with 95 grains of 7828 for an accuracy load. The 250 grain accuracy load is 3056 fps with 91 grains of 7828. My 338 RUM shoots the 225 at 3260 fps max and my two 338-300 ultramags shoot the 225 right at 3300 fps. All of those velocities are with a 28" barrel. I like your long throat design and that is where you are getting the extra velocity. You definitely have done your homework and have a very nice hunting rifle. What might not make sense to me may be the greatest thing around for the next guy to wildcat. That is why they make all kinds. [/QUOTE]
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