Range Report  6.5 prc, 6.5 sherman mag, or 6.5 saum shorty

6cmShooter

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Looking at doing a 18 or 19 in short action magnum rifle. I'm wanting to use the 140 gr hornady bthp bullets or maybe even the 143s. What round will give me the most amount of speed and performance out of a barrel that short.
 

Steel head

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  • Aug 3, 2014
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    They’re all going to be so close it doesn’t matter.

    The Sherman mag would fit tighter magazine constrictions.
     

    Snipe260

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    Feb 11, 2017
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    I thought those rounds would need at least 20 inch barrel to do them justice! What would be the differences in the creed vs those 3 in a short barrel?
     

    XTREM HTR16

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    Looking at doing a 18 or 19 in short action magnum rifle. I'm wanting to use the 140 gr hornady bthp bullets or maybe even the 143s. What round will give me the most amount of speed and performance out of a barrel that short.

    Im probably going to cut my 24” SAUM down to 20”. Will likely still see 3,000 fps with the 139 Scenar. I’d go that route...
     

    Brown2008

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    Any updates on this build? I am in the process of collecting parts for an 18" 6.5SS.

    Curious as well, holding a 6.5 22inch I’m trying to settle on between these three
     

    Mallardmilitia

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    Hey maybe someone in this thread can point me in the right direction. I recently built a 22” 6.5 SAUM. Took it to the range today for the first time. the thing is a tack driver, BUT Using Bertram brass at 60gr. Of H1000 I’m only pushing a 130gr Berger at 2800 FPS this seems slow. (No pressure yet) Any advice? I am running 210M primers would 215M make a big difference? That’s the first thing I’m going to change.
     

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    XTREM HTR16

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    @Mallardmilitia I am using 63.0 H1000 with Berger 130 VLD in my SAUM, using Rem brass and Tula LRM primer. I’ve not messed with Bertram brass but you should have some room to go up. Also, my Bartlein barrel was slow until I hit about 120 rounds, then it jumped.
     
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    Mallardmilitia

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    So I’ve heard a few people talk about the velocity jump after break in how big of a jump did you see 50 FPS?