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Discussion Starter #21
Holidays and hunting season took a toll on shooting time, but I'm pleased to say that I finished tweaking a 95gr SMK load today with 3 / 5 shot groups averaging 2in at 300yds. Now to load up 100 and go confirm drops to 1300yds.

This is a fun round. I'm going to stick with the AR version and build a 6mm bolt gun.
 

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what was your load specifics, barrel length, and muzzle velocity?
 

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Discussion Starter #23
Sorry, but life has gotten in the way of my shooting. I'll be going out this weekend to see if I can get some more data.

For now the I can give you the barrel and load specs:

6.8 twist 22" barrel. No marking on the barrel other than cartridge. No idea who made it.
FC Brass trimmed to 1.580
CCI BR - 4
Alliant RL17 26.8gr (seriously compressed)
95gr SMK
2.335 COAL
ASC Metal Mag with end plate cut out

Going to try out 80gr Nosler CC, 73gr Hornady ELD M, Berger 82gr BT Target and Berger 90gr VLD also.

I looked at switching to RL15, but everything I have read suggests it is not temp stable at all. I am going to see what Benchmark can do when I switch to the lighter projectiles. QuickLoad shows that I can get 2850fps with around 58k PSI from the 80gr CC.

Much more to come.
 

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Discussion Starter #24
So, here's a couple pictures of the ladder I shot at 300yds to find a node with 95gr and RL-17.

Settled on 26.8gr @ 2.335 COAL

I have 25 rounds loaded to go test. Just need the weather to cooperate now.



20200521_121540.jpg
20200521_121504.jpg
 
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