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I think the impetus behind WHY Lapua came out w/the 47 was ammo/brass sales, cornered the market w/a proprietary round.

I have wanted a 47, but 95+ percent sure I am doing a 260 on my Fluted Varmint Bartlein 8 twist, 23", that will be screwed on an Alpine action.

More and more brass and ammo options being developed. The 47 has few cons, but according to many, it must be pushed hard to match or come close to 260 performance w/heavier bullets.

The 47 surely will equal or better accuracy, but the difference may not be meaningful outside bonafide official competition. Quality custom 260s w/good loads run very tight accuracy and brass can be ready made.

If I wanted to step up in performance w/no concern on bbl life, a 6.5-284 might get the nod. A 260 AI will come close to it as well w/a little longer bore life.

http://www.snipercentral.com/match260ammo.htm

http://demigodllc.com/articles/6.5-shootout-260-6.5x47-6.5-creedmoor/?p=1

http://demigodllc.com/articles/the-case-for-260-remington/?p=1

If you want cheap affordable factory ammo and ready for competition, the Creedmoor is compelling, but I'd rather the common 308 brass based 260 for simplicity and accessibility to common brass for handloading.

They are VERY close in performance, but subtle differences-pros/cons to each.

Good luck.




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The 47 has few cons, but according to many, it must be pushed hard to match or come close to 260 performance w/heavier bullets.


It's obvious the 47 needs higher pressures to match 260 MV and I would think this would negate any edge it may have in longer throat/barrel life.

I have to ask, is there a potential problem with ignition in cold weather using a small rifle primer with the 47?
I would think for a hunting rifle I would avoid it.

In my 6.5-284 I can attain 260 Imp speeds with lower pressure by going to a slower but accurate powder, according to QL.
AND, I don't have to buy expensive 260 imp dies and fire-form.





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I have seen problems with small rifle primers in extreme cold more than once....minus 25 to 40F. They dont always go bang.


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Originally Posted by kyreloader
I would choose it because of the Lapua brass and improved case design (longer neck, small rifle primers).

Does that make enough difference to choose it over a 260?

It would to me.



Lapua is making Palma 308 cases... 308 Win w/ small primer pockets. There is your quality 260 brass.

I've been debating this same issue in my mind as well. I'm leaning 6.5x55 Swede, but I have a Mauser rather than short action. If I had a short action I think I'd go 260 Rem, personally.

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Having done both, in short action, I would go with 260AI. I prefer long actions for the 6.5-284. The next step up is the 6.5-280 imp... not a short action candidate.

With R17, you can get 2950 with a 24" 260 AI and 130 Bergers. With a 27" barrel, I'll bet you can get closer to 3100.


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Originally Posted by dennisinaz
Having done both, in short action, I would go with 260AI.


What did you have to do to get it to feed? Terry Cross says a 260ai needs a centerfeed mag, so there goes any weight savings over an ADL long action

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I shot for several years in competition the 6.5x284 and did well with it.It's not finicky but it will eat a barrel.
Are you looking for extreme performance or do you need some life in your gun.
If I were to do it again, it would be the 6.5x08 just because I don't like changing barrels out after 800 rounds.


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Originally Posted by SU35
In my short action 6.5-284 I gain 250 fps over the 260.


I'd sure like to compare velocities of several bullet weights..

in a 260, I can run 140s at 2750 to 2850 depending upon powder...

so can your 6.5 x 284 loads beat that by 250 fps?

if so, then that is impressive..

In my testing, I didn't see that much of an increase on all the loads I tried..\

If the 6.5 x 284 did beat the 260, it was only by about 50 fps..

I had the good fortune of being able to borrow a friends rifle for testing against my 260, when I was looking to build a long range 6.5 on a Model 70 action..


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I must confess of being able to handle a Savage 111 Long Range Hunter in 6.5 x 284...

I must admit, if you want a turn key 6.5 x 284, I'd look real hard at one of those.. price for one at Sportsman's was $725.00, which is not too bad on today's market..

Its an impressive package...and is built the right way..


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I've had no issues with Remington 260 brass. Maybe in BR there are issues but certainly not reaching book + speeds and very respectable accuracy. YMMV.


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Seafire, I was easily able to get 3100 fps out of my 6.5x284 with RL17 powder in my 28 inch barrel. H4831 topped out about 2950 fps. (not sure if 28" barrel in cancelling factor in your comparison)

No dog in this fight, just quoting my experience.

My barrel only lasted about 1200 rounds however before accuracy went away.

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what bullet? I shot exclusively 142's at 20-25 round strings with N165. The barrels lasted 800-850 rds and then some wild a**ed flyers at 1K.


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How bout the new 6.5mm 144 gr SMK


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I'd sure like to compare velocities of several bullet weights..

in a 260, I can run 140s at 2750 to 2850 depending upon powder...

so can your 6.5 x 284 loads beat that by 250 fps?

if so, then that is impressive..

In my testing, I didn't see that much of an increase on all the loads I tried..\

If the 6.5 x 284 did beat the 260, it was only by about 50 fps..

I had the good fortune of being able to borrow a friends rifle for testing against my 260, when I was looking to build a long range 6.5 on a Model 70 action..


In my 260, shooting 130's H4350 45.5g I was getting maxed at 2,900 mv.
In the 6.5-284 130s, 61g of RS Magnum I am getting 3,150 mv.

In the 260 I shot 140's 50g of RL25 at 2,800 mv.
In the 6.5-284 I'm getting 3,050 with
both Magnum 60g and RL 17 50g.

This is in a short action 700 with Wyatts box.

Same rifle, re-chambered barrel.


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I would run a 6.5-06 Ackley. Running just over 3200fps with a 27" barrel and a 140 berger. Well under 1/2moa accuracy, standard bolt face, cheap brass, and low recoil. Not sure what barrel life will be yet. Of the ones I have built, most of them are strictly hunting rifles, so they will probably last quite awhile. Mine gets put through the test alot though, and I am keeping a log of how many rounds.


***Whoops, just noticed he wanted a short action. I would probably run a 6.5x47L or a straight 260. Pretty close to the same ballistically, one is cheaper to shoot than the other.

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Originally Posted by TMR
I would run a 6.5-06 Ackley. Running just over 3200fps with a 27" barrel and a 140 berger. Well under 1/2moa accuracy, standard bolt face, cheap brass, and low recoil.


What action and were there any feeding issues with the Ackley? IE, did rails or the feed ramp need modifying?

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Sometime back, I put in for a new 6.5 caliber barrel in a fluted stainless offering. I already had a wore out 30-06 sporter type in a model 70 Winchester. So the 6.5 cal was a no brainer since I wanted a lightweight rifle in a caliber that offered more big game ability than my 25-06 that had been taking deer and speed goats for the last dozen years of so.

I don't do much long range work with this rifle, it was really built to take up the slack of the down the road 1/4 bore I used to carry. It shoots .650 MOA at 100 yards (Sierra bullets) and others have shot this rifle and had groups under 3 inches at 300 yards. It makes for one heck of a mule dear gun and will certainly take a bull elk in a pinch with the proper weight bullet. I still have a bunch of those Hornady 160 grain pills from the 70's.


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Originally Posted by 280rules
Originally Posted by dennisinaz
Having done both, in short action, I would go with 260AI.


What did you have to do to get it to feed? Terry Cross says a 260ai needs a centerfeed mag, so there goes any weight savings over an ADL long action


He needs to find a new gunsmith. They feed, not as slickly as the parent case, but feed pretty good. As yes, I know who he is. He only says that it isn't "reliable enough for a sniper rifle".

Last edited by dennisinaz; 06/17/10.

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6.5-284 for sure. If you only wanted to shoot to 600 at your local range for fun the 260 is choice, but... if you are going to 1000 in benchrest matches the 6.5-284 exists for a reason. With a custom chambered barrel you have lots of options. 140 gr VLD bullets seated into the rifling don't need much throat (ask Mr. Berger) and single shot followers make more sense in 14+ lb rifles. 6.5-284 for sure.


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The biggest problem with 260rem is that not enough of the gun manufacturers support it. I can't work out why remington don't have one in their varmint rifle range. I must confess to myself eyeing off one of those Sako 85 Varmints in 260rem...would it be wrong to have two 260's smile


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