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What would a 6.5mm Ultra Mag do?

 
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  #1  
Old 06-30-2008, 09:05 PM
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What would a 6.5mm Ultra Mag do?

Just wondering, I'm trying out for the Missouri Junior High-Power team pretty soon. If I had a 260 Rem built, then had another 6.5mm cartridge that was faster for long range hunting so I could use the same bullets. What could I achieve with the 140 grain bullets, or maybe the 169 grain Wildcats?
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Old 06-30-2008, 11:44 PM
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Hey Tyler

The 6.5 REMINGTON mag will do 3000 fps easy with the 140 gr bullets. I have had it up to 3100 fps with no pressure signs but 3000 fps gave better accuracy. That is in a 26" barrel.

I am not familiar with the 6.5 ULTRA mag but if it's like the 264 win mag then you will get a lot more bang for not much gain. Too overbore.

JMHO
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Old 07-01-2008, 12:11 AM
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Through the years I have necked all kind of cases to 6.5 with the largest being the 8mm rem mag and the 300 wby. With those two you have a very short window of premium accuracy. I have necked the ultramag to everything from 7mm on up. The 7mm was a big mistake. Not worth a dang. I did three of them with 31" match barrels for long range with heavy bullets. Barrel life with premium accuracy was extremely limited. Of all the 6.5's I have done the best combination of performance and barrel life was with the 6.5/06 imp. 6.5 gibbs, and the 6.5/284 but on a long action because of seating that long 140 grain bullet. These are a pleasure to shoot, have good barrel life and you can easily take out a deer at half a mile with them. I have a 264 winchester that shoots lights out but again probably not for long. The 6.5 gibbs will shoot right with the 264 winny with less powder.
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Old 07-01-2008, 01:07 PM
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Looks like 338 Edge is still the way to go.
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Old 07-01-2008, 10:19 PM
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Just how did you go from thinking about a 6.5's to a 338 Edge? Porsches and 1 ton trucks.
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Old 07-01-2008, 11:52 PM
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Well I've been wanted a 338 Edge, but then I saw that 260 Rogue in the classifieds. If I got that for high power shooting, I could just get another barrel for a different cartridge/same caliber. Maybe use the same bullets, primers, everything except cases and bolt head.
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Old 07-03-2008, 04:35 AM
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RUM

I kicked around a 257/6.5 rum and ended up buying a 300 rum as the donor rifle and liked it enough i never switched. Im not happy with the brass though, if i didnt have $200 in dies and another $150 in brass i would gladly switch to a 300-338 Lapua.
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