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Thread: Barrel twist?

  1. #1
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    Default Barrel twist?

    Whats the best twist rate for a 35 whelen if your goal is to use 225-250 or heavier bullets? Thanks

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    I use 14 twist and typically cut at 20-21" length. Seems to stabilize the 225 Barnes, the 225 Accubonds, as well as the 250 Hotcores from Speer without issue. I don't get blistering speeds out of them as some folks claim.

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    This is another forum but has some good information if you pick through. There is a lot of information on this Cal if you do a Google search.
    http://www.24hourcampfire.com/ubbthr...twist_rate_and_

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    Member Eastwoods's Avatar
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    Quote Originally Posted by yukon254 View Post
    Whats the best twist rate for a 35 whelen if your goal is to use 225-250 or heavier bullets? Thanks
    You can also Google "green hill formula" for barrel twist rates. It takes into account length and weight of bullet, velocity, etc.

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    Seems tough to find a Whelan with a 1 in 14 twist. Most I've seen are 16. I think the way to go if a guy wants to use the heavier bullets would be a 9.3x62, they all seem to be 1 in 14. Pretty sure Tikka makes a LH in a 9.3x62. Tikka doesn't bring them in to Canada, but Sako does and Clay at Prophet River figures he could order one for next season.
    Sorry, off topic...
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    I have gotten 2 from X-Caliber in Kalispell, MT. They will do a pre-fit for a Savage or send you or your smith a contoured blank to chamber. If you guys are in Canada that may add a wrinkle though. I think export is a different matter.

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    http://kwk.us/twist.html

    If you need the length of a particular bullet, lemme know. l have a data base that gives me that and more.

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    Quote Originally Posted by gbflyer View Post
    I have gotten 2 from X-Caliber in Kalispell, MT. They will do a pre-fit for a Savage or send you or your smith a contoured blank to chamber. If you guys are in Canada that may add a wrinkle though. I think export is a different matter.
    I don't know how hard it would be to get a barrel over the border. You folks see to have gunsmiths around every corner, here, not so much. There was an amazing barrel man in northern BC who built a 358NM for me. Sadly, he recently passed away. Would have loved to have him build me a 35 Wh. I'm sure there are other good gunsmiths here in Canada, but most of them seem to be word of mouth guys, and for me anyway, getting a firearm built is an act of faith. You don't just want anyone with a lathe slapping a rifle together.
    Never wrestle with a pig.
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  9. #9

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    Interesting question. My 270 Win is a standard 1 in 10" twist rate, but if I ever re barrel it, I will probably go with a 1 in 9". My 500 Jeffery with a McGowen barrel has a 1 in 10" twist rate compared to the "standard" 1 in 17" It's very accurate, once you load a 570g bullet over 2400 fps you do feel the rifle trying to turn in your hands a bit. I keep the loads down to 2300 fps for both that reason and my shoulder's sake. A little too fast is better than a little too slow.

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