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Barrel decisions

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Old 03-16-2012, 09:39 PM
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Join Date: Mar 2012
Posts: 32
Re: Barrel decisions

Thanks, I was wondering how much of a gain. IF I got 200 more fps, that would be right in the middle of 300WM factory speeds. Plus it does seem all the powder companies publish their speeds with 24" test barrels.

I know for deer, the plain 22" '06 ought to take them well past 500yds, but it would really be a bummer to KNOW my 500yd POI but not feel like the rifle/caliber was up to it.

I suppose the age old answer would be to get closer. If I went with a longer tube, I would want some fluting, unless it was what I call the magnum contour which is about .650 at the muzzle. Not sure what taper number that is.
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Old 03-16-2012, 10:30 PM
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Join Date: Dec 2009
Location: Redmond Or.
Posts: 2,527
Re: Barrel decisions

200 may be pushing it. I may have rounded up some. The old school rule of thumb was 50-60 feet per second, per inch, depending on case volume, etc.
When compared to a 22" barrel, the 26" is gonna shine more, & more, the hotter you load it. I'd guess it'd gain quite a bit in velocity, especially being able to take full advantage of slower powders, but you may or may not get 200 full fps. 150 ya, 175 maybe/probably, but your nearing the end of the maximum return ratio of barrel length to case capacity.
Like I said, you'd be knockin on the door of 300win velocities. Barnes bullets loaded hot would probably come closest for velocity.
Granted, you can always load a 300 hotter. But you'd be somewhere in there compared to standard loads on a 300, which is pretty dang impressive for an ol -06 I think.
"Its not Rocket Surgery.....'

"I have No idea why that cop made me ride in the back seat, when I Clearly called Shotgun!"
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Old 03-17-2012, 10:35 AM
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Join Date: Mar 2012
Posts: 32
Re: Barrel decisions

Yea, I read an article a few years back where a well known writer (can't recall the name right now) hunted in Africa with his 30-06, which had a 26" barrel as well, and he got special permission to hunt Cape Buff with it. Seems he'd had some neck injury he was healing from and couldn't handle the recoil of heavier rounds.

Anyway, he was pushing a 220gr solid bullet somewhere around IIRC. Gosh that's driving me crazy not remembering all this. He's a Hispanic fellow been writing for 40-50 years too, both bun and archery hunting.

Ha, I remembered his name, and found the article. Sam Fadala, and here is an excerpt from his article.

"Sometimes penetration and bone damage are paramount. As some may recall from an earlier article (“Happy Birthday, .30-06″, May/June), I had official permission to go for a Cape buffalo with a .30-06. A come-apart bullet would be a disaster in this instance. I chose a 220-grain solid cranked up to 2,615 fps from the 26-inch barrel of my rifle. The bullet entered the right temple, stopping under the hide of the left shoulder after more than 40 inches of travel. "

Here's the pic from the article.

Anywaylooking at Hodgdons reloading data they list the 220 max at 2450 ish and that's from a 24" tube, so it sounds like ole Sam was running warm loads as well, but HE got 200 fps

Here's the link to the article.
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Old 03-17-2012, 01:43 PM
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Join Date: Jan 2011
Location: Spokane, WA
Posts: 2,242
Re: Barrel decisions

Just to keep the discussion alive-To say he gained 200FPS due to the 26" barrel is a bit simplistic, lots of factors involved-pressure as you mentioned. If you trimmed that 26" barrel to 22" my bet is it cracks 2500fps. I pulled up loaddata.com just to peruse a variety of rifles, and keep the source neutral, they list a load with N-205 that clocks 2571with a 220 grain bullet in 22". In a 24"barrel R-22 2602.
The 30-06 does not benefit a great deal from longer barrels. It's been forever since I loaded the 220's so I don't recall the loads, but 2500 FPS with 220's wasn't that tough to do in a 22" tube. The 30-06 biggest deficiency is manuals that hold pressures low in consideration of older rifles, not barrel length.
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Old 03-17-2012, 01:56 PM
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Location: Spokane, WA
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Re: Barrel decisions

Just thought I'd follow up, loaddata list a load of 58 gr of IMR 4350 in an FN with 22" barrel at 2951 with a 165 grain bullet. I believe this will meet the original parameters given.
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Old 03-17-2012, 05:55 PM
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Join Date: Mar 2012
Posts: 32
Re: Barrel decisions

Wow thats gettin it up there. Might have to rethink the longer tube. I just found an accurate load for my 168gr TTSX's but didnmt run them thru the chrono yet. Will have to experiment a bit. Good thing the Barnes bullets like the upper end of the pressure scale.
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