22-250AI Start Points

Discussion in 'Reloading' started by duckhunter175, Jun 17, 2018.

  1. duckhunter175

    duckhunter175 Well-Known Member

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    Have brass fireformed and have a pile of 75gr Amax, 80gr ELDM and a box of 90gr SMK.

    Nosler book doesn't have data for heavies--

    Have R15, R19, H4831sc, and other slow burn powders. What other powders should I check out?
     
  2. Creedmoor shooter

    Creedmoor shooter Well-Known Member

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    Give rl-26 a go. My dad is running I believe 42.5 or 43 I dont remember the exact charge and it pushes a 95 smk at 3200. We've had the 75 eld at 3550 as well with it
     
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  3. Steelheadjoe

    Steelheadjoe Member LRH Team Member

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    I am using Varget in an 8 twist 20" barrel and just tuned in a 3 shot one hole group using ELD's
     
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  4. Slick8

    Slick8 Well-Known Member

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    I'm running W760 in my 1:8 22 inch Bart. I'm getting 3100 w/ 80 grain ELD-M's and repeatedly shot 1 inch groups at 300 yards.
     
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  5. duckhunter175

    duckhunter175 Well-Known Member

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    Are you guys starting with charges in the upper end of standard 22-250 or even up to 220 swift loads?
     
  6. Slick8

    Slick8 Well-Known Member

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    I used 220 swift loads but started low and worked up using ladder testing. Never actually found the max where the rifle starting telling me she was feeling it.

    I found a load that I was happy with which met the speed I was looking for from the build.

    I shot 69 SMK's during fire-forming then shot 75 AMAX's and 80 grain ELD-M's. The only bullet that has disappointed me was the 75 Swift Sirocco. Going to give it another try one day.

    I shot this 25 shot group while fire-forming.

    25 shot group.jpg
     
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  7. MagnumManiac

    MagnumManiac Well-Known Member

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    Haven’t investigated, but if you can find data for the bullet weight you want to use in the 22-250 data, then you can start at those max charges as your start loads.
    I have always done this in mine without issue.
    I have a preference for Varget and H4350 with heavies in mine.

    I can’t run anything heavier than 60gr in my 1:14” twist.

    Cheers.
    :)
     
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  8. just country

    just country Well-Known Member

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    morning, now I am running 39grs of 4320. 77gr. smk.
    out of a rem. 722 hart SS 28" #7 contour barrel. HS
    stock match timmey trigger. excellent. justme gbot tum
     
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  9. just country

    just country Well-Known Member

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    morning, use internet for obtaining different loads for
    different length barrels and different twist. justme gbot tum