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338 win mag, 300 win mag, or 300 weatherby mag?

 
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  #15  
Old 04-14-2013, 08:53 PM
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Re: 338 win mag, 300 win mag, or 300 weatherby mag?

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Originally Posted by Bart B View Post
If one's objective is to shoot bullets accurately and shot placement is paramount, then consider the cartridge that has the least recoil. Doesn't matter if a brake lessens it after the bullet leaves the muzzle; it still moves a lot while the bullet's going down the barrel.

Belted cases are not all that great for best accuracy when reloaded. Rimless bottleneck ones are much easier to reload to be a tack driver.

I consider the .300 RUM the ultimate compromise to have the best suite of accuracy, shootability and hunting performance at the longer ranges. It's worth opening up the bolt face.
I find the whole rimmed case stuff to be complete and utter ********. My 7mm rem mag shoots .3 inch groups all day long. I just gotta do my job.
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Guns I own: 300 winchester magnum, 7mm Rem mag, 243, H&R 22 revolver, BT99 12 gauge, 20 gauge break action. 20 gauge pump, 22 break action, 257 Roberts, winchester super x 1. Wishlist: 308 winchester, 6.5mm-284 Norma, 17 HMR, 7mm RUM, another 7mm rem mag LOL, 44 magnum revolver, 30-30 lever action, 44 lever action.
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  #16  
Old 04-14-2013, 09:00 PM
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Re: 338 win mag, 300 win mag, or 300 weatherby mag?

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Originally Posted by banjo318 View Post
300 grain matchkings and 220 partitions. Of course this is not with the same powder, but its the best velocity i can get out of it.
The 220 partition has the ballistic qualities of a brick, run your numbers with a real long range killing bullet like the 215 Berger, it'll change the numbers! You'd be better of running the 250 Berger Elite hunter or 225 Interbond in the 338 but still at a grand the impact velocity is a little lower than I like, I really like the 338 Win to about 800 yards on the far end, my next one will be a WSM version for a packing elk rifle.
The 338 RUM will make the 338 Win look stupid when it comes to elk at a grand, you don't have to mod your bolt face at all, I have two Rem 700's and two Savages around here in RUM or WSM and all but one started as a 7mag with no mods, the one thing that can be an issue with the RUM is mag length which on the Rem is easily solved but the Savage your kinda stuck but I don't mind single sledding if it means accuracy and performance at long range.
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  #17  
Old 04-14-2013, 09:13 PM
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Re: 338 win mag, 300 win mag, or 300 weatherby mag?

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Originally Posted by Bart B View Post
I don't think so.

The difference in what they do with the same bullet's not worth having to reform cases before you can shoot them in my opinion. That subtracts from "shootability" which includes getting components and loading them.

I'd like to see the muzzle velocity difference between both cartridges with the same barrel length, peak pressure, bore and groove dimensions for heavy 30 caliber hunting bullets. This would be a realistic comparison. Even if the .30-.375 shot 'em 50 to 100 fps faster, that' enough to negatively effect "shootability." More muzzle velocity is countered by more recoil making the faster ones harder to shoot accurately.
The 30/375 S.I. will run a 215 grain bullet to 3050 from a 28" barrel, same ballisticly as the 300 win mag but without the belt, a longer neck, and a better case design IMO. An OAL with 215 berger is 3.705. You burn about 15 grains less powder than the 300 rum. The reason we are rebarreling our 300 RUM to 30/375 S.I. is shootablity, a lot less recoil, muzzle blast, better case design. Heres a link, New 30/375 wildcat case forming is shown on page 37.
Riley
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  #18  
Old 04-14-2013, 09:48 PM
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Re: 338 win mag, 300 win mag, or 300 weatherby mag?

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Originally Posted by bigngreen View Post
The 220 partition has the ballistic qualities of a brick, run your numbers with a real long range killing bullet like the 215 Berger, it'll change the numbers! You'd be better of running the 250 Berger Elite hunter or 225 Interbond in the 338 but still at a grand the impact velocity is a little lower than I like, I really like the 338 Win to about 800 yards on the far end, my next one will be a WSM version for a packing elk rifle.
The 338 RUM will make the 338 Win look stupid when it comes to elk at a grand, you don't have to mod your bolt face at all, I have two Rem 700's and two Savages around here in RUM or WSM and all but one started as a 7mag with no mods, the one thing that can be an issue with the RUM is mag length which on the Rem is easily solved but the Savage your kinda stuck but I don't mind single sledding if it means accuracy and performance at long range.
I said at the muzzle you dip.
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Guns I own: 300 winchester magnum, 7mm Rem mag, 243, H&R 22 revolver, BT99 12 gauge, 20 gauge break action. 20 gauge pump, 22 break action, 257 Roberts, winchester super x 1. Wishlist: 308 winchester, 6.5mm-284 Norma, 17 HMR, 7mm RUM, another 7mm rem mag LOL, 44 magnum revolver, 30-30 lever action, 44 lever action.
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  #19  
Old 04-14-2013, 09:53 PM
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Re: 338 win mag, 300 win mag, or 300 weatherby mag?

Im actually probably gonna go with the 340 weatherby magnum.
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Guns I own: 300 winchester magnum, 7mm Rem mag, 243, H&R 22 revolver, BT99 12 gauge, 20 gauge break action. 20 gauge pump, 22 break action, 257 Roberts, winchester super x 1. Wishlist: 308 winchester, 6.5mm-284 Norma, 17 HMR, 7mm RUM, another 7mm rem mag LOL, 44 magnum revolver, 30-30 lever action, 44 lever action.
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  #20  
Old 04-14-2013, 10:01 PM
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Re: 338 win mag, 300 win mag, or 300 weatherby mag?

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Originally Posted by banjo318 View Post
Just to put this out there, the 339 win mag has a 200 ft pound of energy advantage over the 300 weatherby.
Quote:
Originally Posted by banjo318 View Post
Well im going to rebarrel my 7mm remington magnum soon. So i need to decide on a longish (to 1000 yards) hunting rifle. I need to make a point that the 338 win mag is flatter shooting than the 7mm remington magnum and provides way more punch. Anyways, I have a 300 win mag and its wonderful for that, but the 300 weatherby is better. The 7 stw might be an option but i dont think ill choose that. This rifle will be used at 400 yards for the closests shots. It must be able to take down elk at 1000 yards. (must still have 1500 ft lbs of energy at 1000.)

Quote:
Originally Posted by banjo318 View Post
I said at the muzzle you dip.

Actually you don't have a clue what you said, never have you said muzzle energy which who cares about any way since it means nearly nothing to long range shooting.
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  #21  
Old 04-14-2013, 10:14 PM
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Re: 338 win mag, 300 win mag, or 300 weatherby mag?

Oh, i said that to someone else somewhere here. Thats what i meant. So calm down, thats all i was saying.
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Guns I own: 300 winchester magnum, 7mm Rem mag, 243, H&R 22 revolver, BT99 12 gauge, 20 gauge break action. 20 gauge pump, 22 break action, 257 Roberts, winchester super x 1. Wishlist: 308 winchester, 6.5mm-284 Norma, 17 HMR, 7mm RUM, another 7mm rem mag LOL, 44 magnum revolver, 30-30 lever action, 44 lever action.
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