Suppressed 6.5 Grendel quesation.

Discussion in 'Class 3 / NFA' started by Gordon Dempsey, Feb 10, 2013.

  1. Gordon Dempsey Member

    Member Since:
    Mar 26, 2012
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    70
    Bottom line, don't ask stupid questions and don't answer stupid question. Trolls and Feds beware.
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    I'm asking because I don't know. If I wanted a MVP Suppressed 6.5 Grendel to shoot sub-sonic 160 gr. Hornady round nose bullets, what rate of twist would be required, and would a 20" barrel be suitable? I can not carry a suppressor through Canada from Alaska (or take it home from the Lower 48). Can a suppressor be mailed/shipped?

    Thank you
  2. MechTech Moderator/ Damn Yankee

    Member Since:
    Aug 7, 2011
    Message Count:
    769
    Gordon, you can have a .30 cal. suppressor transfered to a class 3 dealer in AK from the lower 48 with no problems. Most class 3 dealers would gladly help you with the associated documents and any questions you may have. What city are you closest to? I can locate a dealer for you. As far as twist rate, I am gonna say 1 in 10" for a 160gr bullet. Hopefully other members will chime in on the twist rate.
  3. Gordon Dempsey Member

    Member Since:
    Mar 26, 2012
    Message Count:
    70
    Hi MechTech, Thank you. I have not thought about owning a suppressor prior to getting into this group. The two larger towns near us are Kenai, and Soldotna. Black Dog firearms in Soldotna ia a Class III dealer, so I'll check there for the silencer and information on shipping to and from the Lower 48.
    I would think a guy could knock off a couple pigs out of a sounder before they got wise to what was happening. That is my though anyhow.
  4. sharky47 Active Member

    Member Since:
    Nov 1, 2012
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    162
    I love the 6.5 Grendel - but I think you'll be disappointed in the subsonic performance.

    Your way better of going with .300BLK or a similar cartridge that is tailored for sub work. Now, if you want to do it just because - that's totally cool, not trying to talk you out of it - just making sure you know what your getting into.

    A 9 X 39mm would be a pretty sick conversion.....
  5. Gordon Dempsey Member

    Member Since:
    Mar 26, 2012
    Message Count:
    70
    "I love the 6.5 Grendel - but I think you'll be disappointed in the subsonic performance."

    Thank you Sharky. Yes, I was thinking of hunting with the suppressor and the 6.5 Grendel. I'll consider something bigger for that task. Hmmmm, 9X39. Interesting.
  6. sharky47 Active Member

    Member Since:
    Nov 1, 2012
    Message Count:
    162
    Supersonic through a .30 can will work just fine! Go on Youtube and search "sharky4747", there is a video of me shooting my first Grendel AR with a Gemtech HVT.

    Subsonic will work with the correct twist, but you'll have to deal with excessive case capacity issues and all the drama that comes with that - AND you won't have the heavy bullet selection like the BLK to maximize what little energy you have at that speed.
  7. Gordon Dempsey Member

    Member Since:
    Mar 26, 2012
    Message Count:
    70
    Good information Sharky, thank you. I'll try to view the video with sound. I just got a used Apple computer this morning, and I don't know how to turn on the sound yet. My son will be back tonight to finish installing other things as well.
  8. wood chucker Moderator

    Member Since:
    Dec 19, 2012
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    Granted shooting sub sonics through a can is quieter than shooting super sonics but shooting supers through the same can will still be quieter than without the can.
  9. Gordon Dempsey Member

    Member Since:
    Mar 26, 2012
    Message Count:
    70
    Hi Woodchucker. Eventually I'll have a feel for the power & penetration generated by the 160 gr. Hornady round nose in both sub-sonic and super. That will help detrmine if it will do the job for me or not. Supersonic loads of most all weights will get the job done for the critters in the weight & size I'm willing to pack or drag.
  10. wood chucker Moderator

    Member Since:
    Dec 19, 2012
    Message Count:
    1,599
    Hi Gordon,

    careful with 139 grain fmj bullets,,,,,they go right through elk,,,shouders don't even slow them down.

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