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How does the 6.5 SAUM go 300 fps faster than a 260 at significantly lower pressure with 20gr +/- more powder?
Is it the sharp shoulder angle or the long neck? No, larger case capacity and burning slower powders.
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OP
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Interesting point, I bet I can duplicate the 6.5 SAUM with a 6.5 Remington Magnum and not dick around with case forming.
Dave
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Campfire Regular
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Campfire Regular
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All the cool people are building hot 6.5's now, get on D'train
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Campfire Ranger
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Campfire Ranger
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"Only Christ is the fullness of God's revelation."
Everyday Hunter
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Joined: May 2003
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Campfire Ranger
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Campfire Ranger
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Very simply - it eats barrels the 260 doesn't
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Campfire Outfitter
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Campfire Outfitter
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Is Grant's Pass almost the Northwest Territories? Laughing... Tanner
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OP
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Two [bleep] hairs or .007 difference in diameter, miles apart in long range bullet selection.
Dave
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Joined: Feb 2001
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Campfire Tracker
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You better pray to the God of Skinny Punks that this wind doesn't pick up......
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Joined: Jan 2005
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Campfire Ranger
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Campfire Ranger
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H1000 + freebore + long neck = MAGIC (or so we're told)
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Joined: Oct 2009
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Campfire Tracker
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Campfire Tracker
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(or so you're shown).....somebody has to do it. Most of you won't step outside of the box.
Luck....is the residue of design... ![[Linked Image]](http://i423.photobucket.com/albums/pp311/patrickgsinclair/96zvyt.gif)
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I'm just not quite understanding how it's making the velocities claimed, due to the case capacity.
Is is being chambered with some freebore?
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Campfire Tracker
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April 25th and 26th at this year's Icebreaker, there will be 8 or 9 guys shooting them. Come on up.
Base to lands: 2.215
Base to ogive: 2.185
COAL: 2.820(139gr scenar)
30 thousandts jump isn't much freebore.
I'm not making this up as I go along.....
Luck....is the residue of design...
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Campfire Tracker
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Campfire Tracker
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![[Linked Image]](http://i423.photobucket.com/albums/pp311/patrickgsinclair/bugholes001.jpg) Rifles with excessive freebore, generally won't shoot like this... ![[Linked Image]](http://i423.photobucket.com/albums/pp311/patrickgsinclair/630m001.jpg) Easy to see why I like it.
Luck....is the residue of design...
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Joined: Jan 2009
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Thanks for the invite Pat, and thanks for providing the info. Good to see first hand info.
I would very much like to make it up there this spring, I've tried the last couple years but always ended up with a branding or storm to deal with!
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OP
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scenarshooter, looks like a win over the 260 if those loads are truly 53K psi.
Dave
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Campfire Tracker
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Hope you can make it! We'll have two wall tents this year with wood stoves, and a huge pot of homemade chili going all day.
The weather just can't be any worse than it's been the last three years.....but you never know!
Luck....is the residue of design...
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Joined: Oct 2009
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Campfire Tracker
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Campfire Tracker
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scenarshooter, looks like a win over the 260 if those loads are truly 53K psi. One of Team GAP's competiton shooters has done pressure testing with the SAUM and those numbers appear to be accurate. We're hoping to have commercial brass in the future. With the high demand on ammunition and components right now, it may take awhile, but it will get done.
Luck....is the residue of design...
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Campfire Tracker
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Pat,
Are your results with the standard 24" GAP barrel length, or is there a longer expansion chamber at work here?
Peak pressure is one thing (and obviously important), but I'd be interested in seeing the pressure curve, area under the curve, etc. Any idea if this info is available?
Thanks,
Jason
Last edited by 4th_point; 01/03/14. Reason: typos
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If brass is ever made commercially I bet you would sell a few more rifles. I sure believe I would buy one if they did.
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Campfire Tracker
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Campfire Tracker
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pat,
can you give us a run down of some of the more notable users of this cartridge and updated round counts.
the other question is since you have seen a good number of animals taken with this, given ideal conditions, what is the max yardage you would take on the following animals,
mule deer,
bull elk,
black bear,
basically what do you think is the effective range of round given the size of each animal. weather and shooting conditions aside.
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