240swc 10 gr unique. 44mag. Speed chrony

[hossfly]

I had a thread awhile back we were talking about that load and someone said in his state 700ftlbs we’re required. Well I ran piles of them through the chronograph this weekend in a 6 inch Anaconda and averaged 1162 with an sd of 14. That is over 700ftlbs

 

[hossfly]

Sorry. Meant 1164

 

[Steve51]

I think that state requirement means 700 foot pounds of energy, not the velocity of the bullet.
There may be some ballistic tables that can calculate foot pounds of energy at different velocity levels and I think you need the sectional density of the bullet being used. May also need the ballistic coefficient of the bullet also.

 

[tominboise]

That maths out to 720 ft lbs of energy, so good to go if 700 ft lbs is the floor.

 

[murf]

and that 700 requirement is at the muzzle. your velocity is a bit down range so your 720 ft lbs at the chrony will be a bit higher at the muzzle.

murf

 

[mdi]

ME calculator http://ballistics101.com/muzzle_energy_calc.php (forgot the formula)...