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Thinking of picking up a new production M700 Mountain rifle in 25-06 and leaving it that way for awhile til the 25-06 funs wears off, then rebarreling it to 6.5-06.
Once rebarrled, the intent is to run 100 to 125 grain Partitions and BTs, and the 129/130 grain accubonds. (for 140 grain bullets and up I will use my M700 in 280 Remington)
I am thinking a #1 contour, 1:9 twist, 24" barrel will keep the weight down, balance right, while giving some extra tube length for velocity. Which is what this experiment is all about - the most V i can get out of the 6.5-06 in a nicely balanced mountain configuration. Thoughts on the how to set this up right?
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Joined: Oct 2002
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Campfire Oracle
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Campfire Oracle
Joined: Oct 2002
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I'd either A) go with a Remington Sporter conter or if that don't float your boat, B) Go for a KS type contour, about .6 at the muzzle.
I'd also round file the 1-9" twist and go straight to a 1-8"
"Dear Lord, save me from Your followers"
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Campfire 'Bwana
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Campfire 'Bwana
Joined: Jun 2004
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I'd either A) go with a Remington Sporter conter or if that don't float your boat, B) Go for a KS type contour, about .6 at the muzzle.
I'd also round file the 1-9" twist and go straight to a 1-8" Beat me to it.
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thanks, I was thinking something along the lines of the Lilja. .542 at the muzzle... http://riflebarrels.com/wp-content/uploads/remmtn24.pdfwon't the 1:9 get me a little more V while keeping pressures down compared to a 1:8... and if I ain't shooting bullet weights over 130 isn't the 1:9 plenty fast?
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Joined: Oct 2002
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Campfire Oracle
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Campfire Oracle
Joined: Oct 2002
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"Dear Lord, save me from Your followers"
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Joined: Jun 2004
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Campfire 'Bwana
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Campfire 'Bwana
Joined: Jun 2004
Posts: 44,905 Likes: 13 |
thanks, I was thinking something along the lines of the Lilja. .542 at the muzzle... http://riflebarrels.com/wp-content/uploads/remmtn24.pdfwon't the 1:9 get me a little more V while keeping pressures down compared to a 1:8... and if I ain't shooting bullet weights over 130 isn't the 1:9 plenty fast? Not in any measurable amount.Maybe, but why shut the door on options? Berger likes 8" for their 130 grain bullets.
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Joined: Jan 2008
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Campfire Outfitter
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Campfire Outfitter
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C)....if I was wanting to "run 100-125gr partitions" I'd just keep it as a 25/06 assuming it shoots to please as is. They're not as cool to talk about but 25's kill the chit outta chit.
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Joined: Jan 2008
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Campfire Outfitter
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Campfire Outfitter
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Oh and forget all that crap about having too much twist espically if it's 1-8 vs 1-9.
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OK, 1:8 it is. Any thoughts on the Lilja remmtn24 contour in a 24" tube?
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Nosler load data between the 6.5-06 and the 25-06 gives the nod to the 6.5 by 150fps, particularly with 100 grain bullets. and this is all about speed in a mountain rifle.
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Joined: Jan 2009
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Campfire Tracker
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Campfire Tracker
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I built mine with a #2 Douglas at 22" 8 twist. It really likes the 127LRX Barnes. It shoots the 140 AMAX ,129 SST and the 125 Partion all at Moa or under. 127 Lrx How she looks got rid of the 2.5-8 and put a 6x36 on it. Killed a Moose and A Wolf this fall with it. But a 25-06 would of done the same thing.
I've always been different with one foot over the line.....
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Joined: Dec 2005
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Campfire Member
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Campfire Member
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I'd either A) go with a Remington Sporter conter or if that don't float your boat, B) Go for a KS type contour, about .6 at the muzzle.
I'd also round file the 1-9" twist and go straight to a 1-8" +1 I have a Remington sporter 24" 1-8" twist. I have had 9 twist barrels on a 6.5-06 and other 6.5s and would not hamstring myself that way again. Light bullets shoot very well with no measurable velocity or accuracy loss.
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An old campfire thread I found states that the KS contour is pretty much the Lilja Remmtn24...also the Pacnor #1...
Last edited by Dogger; 01/29/17.
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Joined: Feb 2003
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Campfire Outfitter
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Campfire Outfitter
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I built a 6.5-06 Shilen select match barrel 8" twist in 2015 and shot a couple animals with 120 gr Nos Bal tips.
I built a 25-06 Shilen select match barrel 9" twist in 2016 and shot one animal with 115 gr Nos bal tip.
I like the 6.5-06 better. Getting the 6.5-06 dies built by Forster and Lee is a hassle. Necking down 30-06 brass to 6.5-06 is a hassle. But it is worth the trouble to me.
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. -Ernest Hemingway The man who makes no mistakes does not usually make anything.-- Edward John Phelps
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Joined: Sep 2005
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Campfire Tracker
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Campfire Tracker
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Are you planning for long range? If not, you'll gain nothing over a 25-06 BTDT. My 24" 6.5-06 shoots 120NBTs at 3150. My last 24" 25-06 shot the 115NBT slightly faster. There was no difference in the field at normal ranges. Sleek long bullets is a different subject, but from what you're planning on shooting, I don't see a benefit. Now, the 6.5-06 is definitely cooler
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Campfire Tracker
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Campfire Tracker
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The 147 ELD looks to be a bullet worth building something for. What velocities can one expect in the 6.5-06 vs the often jerked to 6.5CM?
Curious in the difference in velocity. Short action vs long action wise.
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Joined: Aug 2009
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Campfire Ranger
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Campfire Ranger
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The 147 ELD and RL-26 in the 6.5-06 should put it in a different class than the short 6.5's.
If I could only find some 147 ELD's.
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Sorry, trump is a no tax payin pile of shiit.
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I have buddies who shoot 1K distances at Quantico with their 6.5 Creedmoors... My 6.5-06 is intended to be a hunting rifle, but going out with them and seeing what it can do on the 1K range is something I want to include. I will roll with whatever high BC hunting bullet keeps me in the hunt with them. (pun intended)
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I am rethinking the hunting bullet... the 130 Scirocco (BC .571) or 129 accubond LR (BC .561), with a desired velocity around 3150 fps seems to make more sense if I am to distinguish this from a 25-06 or a 270.... best combo of velocity and BC for this cartridge I am thinking.... if i get into the 140 class bullets i will be giving up a couple hundred fps in velocity...
Last edited by Dogger; 02/15/17.
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Litz has tested the 129 lrab at .553 and the 130 swift at .491. He has also tested the 129 interbond at .518. Just FYI.
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