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Who has a 6.5mm - 300 Win Mag? Need Pet load data.

 
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  #8  
Old 12-04-2009, 10:29 PM
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Re: Who has a 6.5mm - 300 Win Mag? Need Pet load data.

Here is how they stack up beside each other.



It's done! It finished at 24 1/2" barrel length. .298 neck. Simple neck size & trim to form brass from 300 Win Mag. My wife picks it up for me tomorrow. Now to find the magic load. A pressure free 3200 FPS with a 140gr should be easy now

I hope she is good now. On his test fires he ran it up to 65gr IMR 4350 which is 9gr over max 264 WM data. Bolt lifted fine & primer was just starting to crater, so things look promising.
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Old 12-08-2009, 12:58 AM
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Re: Who has a 6.5mm - 300 Win Mag? Need Pet load data.

Well it was -31 this morning when I put it to paper. Today was our last day of Whitetail season, so I wanted to load it with something accurate & fast enough so I could just put it to paper & continue on my day hunting.

Last night I pondered where to load this thing at. I decided on 79gr H870. Why? I figured this would be enough powder to get me some speed & not get me in trouble. I also sized & loaded the two test rounds after the build to see if I was going to have a once fired issue again. Bot rounds fired & extracted no problem. Here is what it did. Keep in mind it was -31 & the shooter may have rushed a bit. Mind you I do like what I see



Top shell was the 2nd shot after a horizontal & vertical adjustment. The first shot hit the target beside this one (not shown). The next 2 were fired after another correction & the last three were after another adjustment. I am not sure why the rifle wandered a bit back to the left? There was no wind it was just bloody cold. After the 3 shot group I made one more correction to the right & fired at the other target (not shown) & it was dead center of the top dot. Good enough to go hunting. Man what a muzzle flash though

The chrony did not work in the AM, but I did set it up when the sun poked out for 1 cold bore shot. 15 feet from the muzzle gave me 3274 FPS ;) Judging by the group I think I may be pretty close. Some tweaking when it is warmer out & we should be in the ballpark.
I did neck size one round when I got home and put a primer in the case. Primer pocket still very nice & tight. Not like some reloads I have done over the years ;) The re-sized shell goes back in the chamber like nothing

Here is the load details

Hornady 300 WM brass necked to 264 & trimmed to 2.610
Federal 215M Primer
79gr H870
140gr Accubond
COL 3.530. 20 thousandths off the lands.
.295 neck before firing & .298 neck after firing.
.514 at the expansion ring.

Nothing to shoot at today, not even a coyote :( Had one doe tag left, but in -31 weather it was going to have to be big to get my hands dirty.

So far all looks good.
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  #10  
Old 12-28-2009, 12:56 AM
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6.5-300 Win Mag as it sits now.

Here are some updated photos of my 6.5mm-300 Win Mag. It now sports a 4.5x14x40mm 1" DPLX with CDS. The stock will be painted in a spiderweb paint finish in the new year. I may have the barreled action powder coated also.












Last edited by Wookie316; 12-28-2009 at 01:01 AM.
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