January 31, 2015, 10:02 AM | #1 |
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6.5x57
A while back someone posted they were going to re-cut an Arisaka chamber to 6.5x57. I don't remember who it was. How did that work out for accuracy with that twist rate?
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January 31, 2015, 07:24 PM | #2 |
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I know a couple of fellas who have done the 6.5x257 Roberts conversion, from a different gun board. The 6.5x257 Roberts conversion is pretty standard for Arisakas. Not the same cartridge as the 6.5x57 by slight dimensional differences, but ballistic twins.
Accuracy depends a lot more on the handload and the condition of the bore than the actual twist rate, as a handloader can match bullet length and velocity to the twist. Sorry this doesn't actually answer the question you asked, but I hope it is helpful. Jimro
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February 1, 2015, 04:51 AM | #3 |
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True. More or less. I have done all kinds of barrel re-cuts and usually you can get something to work, but you are then stuck at one spot. A .244 REM comes to mind. I used heavy Hornady RN bullets in it for deer, and it was good enough @ 100 yards, but that was pretty much it for bullet selection and range. Twist rate/velocity has a lot more to do with accuracy than it is given credit for. Bore condition with cut rifling is nothing to worry about. I found it laughable when I would see people at gun shows with mini borescopes checking average hunting rifle bores. So what if it has a dark bore? If the guy was worried about super accuracy he would be having a rifle built.
Last edited by Gunplummer; February 1, 2015 at 05:05 AM. |
February 1, 2015, 09:48 AM | #4 |
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Milsurp bores are always a fun project to handload for. I knew one guy with a 30-40 Krag bore that was a "sewer pipe" from improperly cleaned corrosive primers who still got very good accuracy using 220gr round nose bullets.
As far as the twist rate goes, Arisaka barrels have been measured between 1:8.3 and 1:9, so right in there with the Swede M96 and M38's. You should be just fine with bullets 140 to 160 gr, unless you get one closer to the 1:9 twist you might have great results with 123gr BTHPs. Jimro
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February 1, 2015, 05:37 PM | #5 |
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I was most likely the one re-chambering a T-38 to 6.5X57 Mauser. I put a Midway Adams & Bennett (Green Mountain) .264 barrel on it and chambered it to 6.5X57. I don't recall the twist rate, but for a cheap barrel it shoots Hornady 129 grain interlock bullets into 1" or less groups. I loaned it to a friend this last deer season who dropped an 11 point buck in its tracks. I'm happy with it, it was only going to be a shooter.
I've since checkered the stock and had it professional blued. Last edited by wachtelhund1; February 5, 2015 at 12:16 PM. |
February 4, 2015, 12:42 AM | #6 |
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That's a Great looking rifle ! Well done !
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February 4, 2015, 06:14 AM | #7 |
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looks like a 600.00 saddle(scope) on a 200.00 horse(rifle), just kidding. 50 years ago i did alot of that type of remodling. eastbank.
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February 4, 2015, 11:13 AM | #8 |
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wachtelhund1,
Great looking rifle. Did you do anything to the stock trigger?
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February 4, 2015, 12:12 PM | #9 | |
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February 4, 2015, 12:21 PM | #10 | |
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February 5, 2015, 05:27 AM | #11 |
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Maybe I do not remember the post correctly. I thought it was someone that re-cut an Arisaka to 6.5x57.
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February 5, 2015, 09:51 AM | #12 | |
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wachtelhund1:
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February 5, 2015, 12:41 PM | #13 | |
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February 5, 2015, 05:18 PM | #14 |
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Twist rate was wrong, probably. That is what I wanted to know. I still have a carbine laying around and was curious how your recut worked out.
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February 6, 2015, 11:40 AM | #15 |
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I had never heard of 6.5-57, but I really like the sound of it!
I had a friend years ago, 1975, who found an old Arisaka MDL 99 in the attic, that his father had brought home after WW2. He had the bolt handle turned, put a cheap Tasco 4x scope on it. He bought 40 pieces of Norma brass and some weird 173gr bullets and proceeded to shoot rings around my sexy new MDL 700, 7mag. This rifle looked like the barrel was a yard long, but would shoot 5 shots well under 1" almost every time, regardless of barrel heating. He had well under $100 in this rifle, and was out shooting everyone we knew. It was an heirloom and he still has that rifle and it out shoots everything I own except for my Cooper VLM. |
February 6, 2015, 01:32 PM | #16 | |
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