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.260 Rem or 6.5X47 Lapua?

 
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  #1  
Old 01-11-2008, 04:34 PM
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.260 Rem or 6.5X47 Lapua?

Was toying with the notion of having a rifle built. Had originally been figuring on .260 Remington but the 'smith I spoke with suggested I consider the 6.5X47 Lapua, describing it as being like a .260 Rem A.I. He also pointed out the quality of Lapua brass compared to Remington, which could make a difference at extended range.

The only drawback I can see is the cost of the Lapua brass. Of course, you get what you pay for. Any opinions?
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  #2  
Old 01-11-2008, 05:04 PM
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I have no experience with either cartidge, but just looking at the brass scematics I'd have to say that the smith wasn't right. the 260 has a 20 degree shoulder and a main capacity length to the datumn line of 42.35mm, whereas the 6.5 x 47 has a main capacity length of 37.4 to datumn line. The body taper is nearly identical (width of both cartridges is within .06 mm). Here is a link to the 6.5 x 47 6.5x47 Lapua Benchrest--New Cartridge Info
I'm sure it is an absolutely excelent cartridge, but you should know what you are getting. It seems the 260 will have a little more power.
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  #3  
Old 01-11-2008, 07:43 PM
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Natty,

I'd have to agree with britz, I shoot a 6.5 WSSM and it seems to be right in the 260 AI ballpark. While I have no actual experience with one I don't think you'll get a 6.5x47 to run that hot without extremely short case or rifle life.:eek:

Chris
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  #4  
Old 01-11-2008, 07:57 PM
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I had my 260 built before the 6.5x47 was a big hit , and I seriously doubt that I would change anything if I built another gun. I have a "260 Match" chamber which is a little tighter than spec but not to tight to fit factory ammo , i use Lapua 308 brass and neck it down this gives me a tight neck situation so I turn them a little and all is well , so iget a tight neck benifit yet i can still shoot factory ammo !!!

I chose the regular 260 over the Ackley improved version simply de to the less hassel of fire forming barass.
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  #5  
Old 01-14-2008, 08:57 PM
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Quickload lists max safe pressure for the 260 at 60k and lists the 6.5x47 at 63Kpsi. I have never compared two rounds with closer to identical performance all componants being equal. I like the small primers on the 6.5x47....and you do not have to form anything to shoot lapua brass.
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  #6  
Old 01-14-2008, 09:53 PM
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I currerntly own and shoot a long-throated .260, and looked at the 6.5x47 before choosing the .260. To me, teh Lapua brass was a nice extra, but didn't carry the day. To get the 6.5x47 to .260 velocities, you need to run near max pressure for the chambering - which will reduce the life of the very expensive Lapua brass. While the small primers and hard brass will help it get to and maintain higher chamber pressures then the .260, I think a longer throated .260 - like mine - will ultimately provide a bit more velocity in the long run.

I have a good friend that is bullding a rifle in the 6.5x47. You never know, shooting his may cause me to reevaluate.

JeffVN
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  #7  
Old 01-14-2008, 11:06 PM
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I forgot to mention another reason I fell that these two rounds are going to give you very similar performance. I do not own a .260 but I do own a 243AI. I also have a 6-6.5x47. With 115 dtacs my 6-6.5x47 will run right with the larger .243AI case and may have a slight accuracy advantage. I do not think there is going to be 30fps difference between them. It should just boil down to a coin flip IMO.
If you run them both on the hot side the small primer case will stay tight longer. I have 66 cases that have been fired 12 times the other 40 odd cases from that first 100 pieces I bought have been fired close to 20 times. Primer pockets are still very tight, necks need annealing but primers are tight.
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