Short barrel 6CM data

sierracharlie338

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  • Mar 12, 2013
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    Republic of Texas (Houston)
    I am building my wife a 6CM for a hunting rig. She will be shooting factory ammo almost exclusively and I am looking for data on barrel length vs speeds with 105-109 class projectiles.

    I’m thinking of running a 20inch barrel because it will be suppressed but don’t want to handicap the cartridge’s performance either. Mostly will be a sub 300yd gun but may get her into the mid range target stuff 5-700 but that would be a secondary function.

    Let me know what y’all are seeing with 18-22 inch barrels.
     
    I have a 22" PVA Osprey on right now. With a can on, it's still possible to run good speeds. Previously, I had 109 bergers at 3044, or 115 DTACs at 2900, both with N160.

    I'm running the 109 Bergers at 2840 now. I had a little temperature/pressure building issues taking the 3044 load from 40*F to 95*F.