User Panel
User Panel
User Panel
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Posted: 4/12/2021 9:13:10 PM EDT
[#1]
You're best chrono'ing it from your barrel, as variables in your setup will not match those of others.
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Posted: 4/13/2021 11:18:35 AM EDT
[#2]
Quoted: Anyone measured velocity of the Black Hills 556 69 tmk out of a 16” barrel? Just bought 100 rounds to see what accuracy is like out of my recce build. Expect somewhere in the neighborhood of 2850fps. |
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Posted: 4/13/2021 12:32:07 PM EDT
[#3]
Quote HistoryQuoted: You're best chrono'ing it from your barrel, as variables in your setup will not match those of others. I’m wanting to, don’t have my own chronograph yet. Still trying to decide on the best model for me. |
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Posted: 4/13/2021 8:42:03 PM EDT
[#4]
Send me 2 or 3 rounds and Ill run em over my magneto speed. I have a couple 16 inch chome lined guns.
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Posted: 4/14/2021 5:20:23 AM EDT
[#5]
Just be aware that 69 TMK does not have the same terminal ballistics as the 77 TMK. It is not suitable as a replacement outside of shooting paper targets.
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Posted: 4/17/2021 9:33:33 AM EDT
[#6]
Quote HistoryQuoted: Just be aware that 69 TMK does not have the same terminal ballistics as the 77 TMK. It is not suitable as a replacement outside of shooting paper targets. This.... it has shallow penetration in ballistic gel. But sure looks like a great varmint round ! 
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