FGGM 175 out of OBR 16 inch

[chalwie]

I'm planning to shoot Federal Gold Medal Match 175 BTHP commercial ammo out of my 16 inch OBR this weekend at a 700 yard range. Has anyone chrono'ed the muzzle velocity to save me some time calculating ballistics?
Thanks.

(I hear there are some Larue haters. I'd appreciate if you don't screw up this thread with those responses)

 

[K_4c]

Re: FGGM 175 out of OBR 16 inch

I'd put you around 2480-2500 fps... educated guess (I roll my own: 175 smk+43.5 Varget+ 20" OBR= 2615 fps @ 1100 ft altitude/80 degrees)

hope that helps

My LMT MWS (16" barrel) chronos 2480 fps with the said load...

 

[chalwie]

Re: FGGM 175 out of OBR 16 inch

That's a great starting point. I failed to mention I have 168 grain as well, any data to start on that one?

 

[BCP]

Re: FGGM 175 out of OBR 16 inch

It'll be around 2400-2450fps most any free ballistic calc on the internet will give you 'good enough' data to get you going.

 

[33shooter]

Re: FGGM 175 out of OBR 16 inch

My 18" was around 2450 with 175 GMM

 

[epaultmbt]

Re: FGGM 175 out of OBR 16 inch

2460 fps on my 16" with M118lr.

 

[chalwie]

Re: FGGM 175 out of OBR 16 inch

Thanks, you guys are great help. I'll post some data afterwards so anyone searching later will glean useful info as well.

 

[RotARy15]

Re: FGGM 175 out of OBR 16 inch

Blackhills 168gr out of a 16" DPMS averaged 2452 fps.

I have no data for FGMM.

 

[chalwie]

Re: FGGM 175 out of OBR 16 inch

Here is my data:
10/12/2012, T=74F, P-29.91, Alt=684ft.
OBR 16" with AAC 762SDN6

Yards 100 200 300 400 500 600 675
Mils 0 0.6 1.3 2.4 3.5 5.3 6.8
MOA 0 2.16 4.68 8.64 12.6 19.08 24.48
Drop(in) 0 4.32 14.04 34.56 63 114.48 165.24