Built a bit of an odd bird this week - 16" 6.5 Creedmoor in an AR-10 platform. With a full-mass carrier, the thing comes to about 7.5 lbs. People report ~2500 ft/sec with a 142 gr projectile out of a 16" barrel, so it should be sonic out to 1700 yds at our 6300' altitude.
It's a midlength gas system, but I think I'll be able to make it run right between the adjustable gas block and a few tweaks to the buffer/spring. I'm still waiting on the right wrench to torque down the barrel nut, but hopefully I'll be able to break it in on Monday.
But what kind of optic does one put on a rifle that's light enough to hump around yet has an effective range of a mile? Interesting times we live in.
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