I finally took my Axis 308 with my DIY "straightjacket" barrel experiment to the range. For a reminder here is the rifle:
The rifle is an Axis SR 308, (threaded pencil barrel) with a 1.25" titanium sleeve (0.028" thick) filled a thermal conductive potting epoxy. I have some detailed pics if anyone would be interested.
Here are the 100 yard results:
168gr Federal Gold Medal Match -3 round group.
168gr Federal Gold Medal Match - 5 round group
175gr HPBT Silver State Armory - 3 shot group
175gr HPBT Silver State Armory - 5 shot group
In total we shot 60 rounds through the rifle, and groups didn't open up after a few short rounds like the pencil barrel did before. I did not let the rifle cool between groups (other than the time it took to waddle down to the target and back). I am pleased with the results, ecspecially with factory ammo. This rifle is still new, and I hope with some load development I can shrink the groups some more.
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