I haven’t found a solution that allows you to do that. Best option would be a hunting pack with meat shelf.
I tried to carry against the frame, folded, and muzzle up and did not like it.
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I then tried muzzle up, folded, on outside of bag and that was better, but since I am a heathen and don’t clean my suppressors very often debris made its way from the suppressor to the bolt and gummed it up. Cycling the bolt multiple times and pulling the trigger cleaned all debris.
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I have since migrated to outside pack, folded, and barrel down.
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I am currently looking at trying to put the Eberlestock Bolt Action Scabbard in between the frame and the pack.