6.5 PRC Retumbo

Hondo1

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  • Jun 2, 2014
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    505
    Colorado
    Looking for some first hand experience and data from those of you who have us Retumbo in the 6.5prc with 140-147’s. I know it’s not the streamline ideal powder for the prc but I have a lot of it and got tired of using RL26 on hot days.
    Thanks in advance.
     

    straightshooter1

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    Dec 5, 2017
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    AZ
    Looking for some first hand experience and data from those of you who have us Retumbo in the 6.5prc with 140-147’s. I know it’s not the streamline ideal powder for the prc but I have a lot of it and got tired of using RL26 on hot days.
    Thanks in advance.
    Down here is AZ, I do a lot of "hot" day shooting, though I go out early enough to not shoot above 95°F (I just don't enjoy shooting in hotter temperatures 🥴). I find that Retumbo works really well for me out of my PRC.

    Berger 140 Hyb, COAL: 3.045; Powder: 58.0 grs Retumbo, Primer: CCI 200, MV: 3009 fps, Groups in 2's & 3's. (temperatures: 80-90°)

    Sierra 142 SMK's, COAL: 2.957; Powder: 56.9 grs Retumbo, Primer: Fed 210, MV: 3019 fps, Groups in 2's & 3's. (temperatures: @80°)

    Berger 153.5 Hyb, COAL: 2.969; Powder: 56.3 grs Retumbo, Primer: CCI 200, MV: 2906 fps, Groups in 2's (temperatures: Low 70°'s)

    . . . all shot through 26" Preferred Barrel Blanks heavy barrel.
     
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    Greenmoustache

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  • Mar 26, 2021
    24
    17
    Costa Mesa
    Looking for some first hand experience and data from those of you who have us Retumbo in the 6.5prc with 140-147’s. I know it’s not the streamline ideal powder for the prc but I have a lot of it and got tired of using RL26 on hot days.
    Thanks in advance.
    I use Retumbo with 147s, Nosler 150s, and Berger 153s. 26” Proof prefit on my TL3 and I push 147s about 3,050 with 57.5gr. If I’m running anything lighter than 147 I typically use RL 2X powders or IMR 7828. I’ve had some luck with H4350 as well but typically try to keep that for my CM.
     
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