load development for 5R Milspec

[ashleyover]

Hello to all

Just got a new 5R set up

Best load so far is lake city brass
Filled with 43 grains of Varget driving a
175 SMK I dont have a crono and wonder if anyone knows approx velocity of this combination

Accuracy had been a best of .28" 3 shot group
Thank you

Ashleyover

 

[LR338nut]

You can easily reverse calculate your MV. Shoot a target at distance, note your environmental conditions and come ups. Plug all your info in to a ballistic calculator like thishttp://www.jbmballistics.com/cgi-bin/jbmtraj-5.1.cgi and play with the velocity until the calculators come ups match yours.

 

[popeye089]

Or.... You can use the Trueing drop option in your Horus ATRAG or applied ballistics calculators.


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[popeye089]

Also when Trueing it is best to do it at a distance that is close to lead edge of transonic flight


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[XTR]

Probably in the mid to upper 2500s at 43.0gr

 

[Vio515]

Second on the mid to upper 2500s.

 

[ashleyover]

thanks to all for the input

it seems 2600 fps is a sweet spot
for the 175 bullet

i have a good sharp ZERO so i will try some 300 yard shots and calculate
speed based on bullet drop

thanks

 

[Shanerbanner10]

I would guess almost right at 2600.

 

[STLSteve86]

load development for 5R Milspec

I don't know what fgmm uses for powder but in their 175 smk factory load it's 43.4 grains. I'm guessing they use reloader 15. They leave my barrel at 2645. I also use varget at 43.9 was my node in my gun and it's like 2665 out of 24"


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