2610 FPS - 20" AR15
2244 FPS - 10.3 MK 18
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Senior Member
2610 FPS - 20" AR15
2244 FPS - 10.3 MK 18
"What would a $2,000 Geissele Super Duty do that a $500 PSA door buster on Black Friday couldn't do?" - Stopsign32v
Banned
Dang, I'm guessing that they probably used TAC too as the powder. I'll stick with my Mk262 clones.Originally Posted by markm
Senior Member
I think he shot at Cowtown range. Said there was horrible wind, and the ammo was only fired for groups. All groups were MOA or just over.
I can't wait to see how it does at 1000 yards.
"What would a $2,000 Geissele Super Duty do that a $500 PSA door buster on Black Friday couldn't do?" - Stopsign32v
Senior Member
In your opinion, thats a good velocity for that bullet weight, or is it a tad slow?
The obedient always think of themselves as virtuous rather than the cowards they really are.
Senior Member
Its not too bad at all for that bullet weight. As long as it shoots well. When I look at some of our data comparing our 69 to 77grain, there is 127fps difference.
I have some old data :
Our 77gr SMK out of 10.5 2260fps,
20 inch 2606fps
Our load is not super hot, we go for accuracy over speed.
These are gas guns, Ill try out of a 20 inch bolt and see what we get.
PB
Last edited by Pappabear; 06-27-20 at 20:37.
"Air Force / Policeman / Fireman / Man of God / Friend of mine / R.I.P. Steve Lamy"
Senior Member
It’s fine IMHO, if it’s MOA or sub MOA. Others know more than me, but yes.
PB
Senior Member
My reference point is always a 20" barrel because I can never remember all the other lengths/expected velocities we want. So the 2610 strikes me as pretty darn good for such a heavy bullet.
The 10.3 seems a little slow, but I'm looking forward to a frag/yaw test to see what the bullet does out of a shorty.
"What would a $2,000 Geissele Super Duty do that a $500 PSA door buster on Black Friday couldn't do?" - Stopsign32v
Senior Member
This ammo is interesting. Shot same come up as our 77 TMK load at 1000 yards. So 10 more grains of bullet at the same come up is cool.
Ammo fragged well out of a 10.3 DD Mk 18 at 15 yards. We got some jacket material recovered with the base of the bullet blossomed out.
"What would a $2,000 Geissele Super Duty do that a $500 PSA door buster on Black Friday couldn't do?" - Stopsign32v
Senior Member
And it shot MOA with 3/5 shots in a ragged hole. Wind was nasty so it could do better IMHO. Pretty good stuff.
PB
"Air Force / Policeman / Fireman / Man of God / Friend of mine / R.I.P. Steve Lamy"
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Impressive trajectory with same come ups as your 77 gr load at assumed lower velocity.
Any idea what BC is?
A true "Gun Guy" (or gal) should have familiarity and a modicum of proficiency with most all firearms platforms.
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