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looking to build a 6.5-284 on a winchester action so which one and why
6.5-284 winchester
6.5-284 lapua
6.5-284 norma

thanks

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I did not know there was any difference between the three. AFAIK, and I could be wrong, each of them is merely a 284 Win case necked down to 6.5 aka 264 diameter. No changes to the case body,shoulder or neck to any of them that I ever heard of.

I will be staying up with this thread to see if there is a difference that I was not aware of.


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I think the rear diameters are different (at least) and the original 6.5-284 Win chamber dimensions have a larger size at the rear compared to the case size due to the original actions the parent .284 cartridge was chambered in; M88 and M100 Winchesters. Long range bolt shooters found they wanted to tighten up the rear of the chamber to avoid loosened primer pockets.


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If you are building on a short action then the Winchester version. You won't be able to seat 140 VLD's.


Long action go with the Norma.

Only difference is bullet seating depth.


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http://www.longrangehunting.com/forums/f28/6-5x284-norma-vs-6-5x284-win-101370/
http://benchrest.com/showthread.php?56979-6-5x284-Norma-Vs-Winchester
http://www.savageshooters.com/showthread.php?20736-6-5-284-Win-vs-6-5-284-Norma-vs-6-5-284-Lapua
http://www.go2gbo.com/forums/hand-loading-for-rifles-and-handguns-sponsored-by-diamond-k-brass/6-5-x-284-win-and-6-5-x-284-norma-what's-the-difference/

Would choose reamer based on what brass you have. If you have Lapua brass go with a Lapua reamer. Make sure it is throated to action.

My first chamber was for win brass minimum specs. needed custom dies win brass. Right now I am sorting used brass that cases are to large
in the base to fit shellholder.
Do a search 6.5 X 284 differences Lapua , Win , Norma

Last edited by kk alaska; 12/12/14.

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KK alaska i is right. But then I had an action that would accept both brands of brass.

I used Lapua but could neck down Win (white box) 284 brass too.

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What kind of barrel life could a guy expect if he kept the barrel on the cooler side?

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Unsure on barrel life, but if I had to do it all over again I would do a 6.5 06 on a LA.


kk alaska

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I was thinking a Defiance XM action would be just right for length!

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Mine is a 6-284 Win. It is chambered with a Win reamer. But since Win brass is darned near impossible to find, I wish it had been chambered with a Norma reamer.

I am using 6.5-284 Norma brass manufactured by Hornady.


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Originally Posted by kk alaska
but if I had to do it all over again I would do a 6.5 06 on a LA.


Could you please elaborate. Im planning on building a 6.5 06 and am interested in your thoughts.


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I Have my own reamer and can use any brass out there. I decided that I wanted the existing resizing dies to work with my base diameter and I throated it for 140 VLDs. My reamer is not the best one for a short action though. There are reamers with longer throats than mine too. Neck diameters are all over the place as well. I like .298" for the necks. This is a reasonable no-turn neck. I mostly use Lapua brass. The Hornady brass is not as good. Most W-W brass is not as good either.


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I used a 6.5x284 for a number of years in LR competition. 48.5 grs of N160 and a 142 Sierra was the cats ass but never got more than 750 accurate rounds out of a barrel. Usually shot 24-26 rounds in 22 minutes.


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