Anyone know about the .260 Remington?


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Old 05-02-2007, 03:43 PM   #1
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Default Anyone know about the .260 Remington?

Does anyone know something about the .260 Remington... the external ballastics on this cartridge look remarkable... it look as if this would make a grat AR for midrange. Does anyone know if anyone other than DPMS carries it? Also, does anyone have a DPMS model?



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Old 05-02-2007, 04:13 PM   #2
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The .260Rem is a great cartridge. It and its AI cousin have won several tactical rifle competitions. It's basicly an updated version of the 6.5x55 Swede.

Honestly, if I were building an AR strictly to kill paper, I'd build it in .243. The ballistics with either the Berger or DTAC (Sierra) 115 grain bullets are very impressive, and it's certainly enough for game up to medium sized deer.



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Old 09-02-2014, 10:33 PM   #3
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I am going to build an AR in the 260 Rem. caliber, I have done some research on the cartridge and have not seen anything negative about it. I do not have a DPMS in this caliber but do have a DPMS 308 SASS. Reloading components are available for the 260 with a fairly wide range of bullet selection. I will post results when I finish the build.

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Old 09-02-2014, 11:17 PM   #4
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Excellent cartridge- similar ballistics to the .300 Win Mag without the same degree of recoil. Basically a .308 necked down to 6.5, and some bullets with a REALLY good BC.

Being of .308 length they will not fit an AR 15 frame, but should do well in an AR 10.

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Old 09-03-2014, 02:41 AM   #5
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Does perform pretty well much like the .300 WM out to 1100 yards with a rifle like this

Spartan .260 004.jpg

I use 139 Grain Lapua Scenars and 140 grain Berger hybrids with extremely good results. The 140 Berger's edge out the 139 Grain Scenars in precision with the barrel I have now. Loading for a semi auto will require powder producing less muzzle velocity than that you are able to use in a bolt gun. Still, in an AR 10, for example, the .260 Rem cartridge should produce good results for a semi auto. My brother has an AR 10 flat top chambered in .243 Win. and it's very accurate as far as semi auto's go.

To give you an example of the exterior ballistics similarity of the .260 Rem. compared to the .300 WM for my bolt rifles, at 1000 yards, with similar atmospherics, the elevation twisted into my scope for the 300 WM is average 6.8 mills and for the .260 Rem. the average is 7.0 mills. Not too far off from each other.

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Old 09-03-2014, 03:16 AM   #6
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Oh, I almost forgot, Lapua has thicker brass than the Remington brass, so if you have a custom barrel made be sure to have it reamed for the Remington brass. The Lapua brass is spendy and not as readily available as the Remington brass for this cartridge. Also, the 140 grain Berger hybrids are longer bullet than most detachable magazines can accommodate. I, for example had to remove that 0.100" thick plate inside my AI magazines to fit the Berger 140 grain hybrid and the Surgeon brand receiver I use in this rifle is relieved for the longer bullets by the factory. You may have to modify for magazines and have the receiver of your rifle relieved to accommodate these longer Berger bullets if you wish to use them.

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Old 09-03-2014, 04:06 AM   #7
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This thread is over 7 years old,and should be closed.

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Old 09-03-2014, 04:08 AM   #8
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Holy cow! didn't see the date of the damn thing. Sorry However, Casper 2761 might get some use out of it.

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Old 09-03-2014, 12:50 PM   #9
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I did not see the date either. I did like the information about the bullet length, I will have to remember this when reloading.
The build will be a AR 10 platform. Good looking rifle MRM14.



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