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.6.5 MM X 284 Build?

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Unread 10-01-2010, 09:37 AM
Gold Member
Join Date: Jan 2007
Location: South Dakota
Posts: 753
Re: .6.5 MM X 284 Build?

I've received a note or two from folks suggesting that the load data I posted for this cartridge is a bit on the hot side.

I've not experienced this, but in the interest of safety I would agree that it is better to initially tone things down. This load was given to me during a conversation with Middelton Tompkins almost ten years ago. Anyone involved with NRA match rifle/1k shooting almost certainly knows that name. I've known Mid since I was 19 years old and trust him completely. I never questioned his advise and in my experience the data he provided me has never steered me wrong.

My personal rifle chambered in this is on a Kreiger 4 groove. The reamer is nothing special, just a minimal spec chamber with a throat length appropriate for the bullet weight. The velocities I quoted are real. I stand behind that. I live at 3500ft elevation. Maybe that has something to do with it. All the test groups and subsequent load development work were shot inside COR BON ammunition's fully instrumented test tunnel about 5 years ago. I would have to think their instrumentation didn't give me bad #'s.

Hope this helps.

Chad Dixon
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Unread 10-01-2010, 09:39 AM
Gold Member
Join Date: Jun 2007
Posts: 937
Re: .6.5 MM X 284 Build?

I personally shot 3 of Kevin's 6.5-284's he had. They all shot lights out and saying he knows this cartridge an uderstatement.

His heavy gun shoots better then any gun I EVER had the privilege of shooting.

You need help with a 6.5 or want one built Kevin knows his stuff.
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Unread 10-01-2010, 10:07 AM
Platinum Member
Join Date: Jul 2004
Location: OHIO
Posts: 2,417
Re: .6.5 MM X 284 Build?

Regarding Kevin's comment and Obermeyer bbls, I have one on a 308. I seem to recall Boots telling me that there is 10 thousandths height with his lands. I don't know a lot about barrels but that alone coupled with the canted or Russian style land seems like it would be of benefit and make the barrel last longer, especially if you had it long enough to where you could set it back if needed.

The first 5 shots out of my 308 were with 210 Bergers (for break-in purposes) with a mild charge of IMR4064. The group was barely larger than a dime. This is with cleaning after every shot of course. I kept going and got to about 18 rounds when I stopped the cleaning after every shot process.

I've emailed him a couple of times asking about getting a couple of 6.5 barrels if possible. I think right now it is still impossible. I was lucky to obtain 2 thirty cal barrels!
Derek M.
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Unread 10-01-2010, 10:26 AM
Join Date: Mar 2004
Location: Danville, PA
Posts: 1,152
Re: .6.5 MM X 284 Build?

Obermeyer barrels are sometimes hard to get. I have a supplier that usually can get me Obermeyer barrels when asked nicely. Chad your 3500 ft. elevation is probably why your getting faster velocities than most of us.

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