Muzzle Velocity.

[Cedric 132]

Hi, can anyone give me a rough idea of the muzzle velocity of a HW97K .22 shooting Accupels 16gr. Uk setup, under 12ftp. I've been using one of those balistic calculators and didn't know what to input.

Thanks.

[andyfr1968 772]

If you have a chrono, then it's the velocity squared, times the pellet weight in grains, then divide by 450240 and that will give you the energy in ft-ibs.

 

Eg... 560 fps X 560 fps X 16 then divide by 450240 gives you 11.144 ft-lbs.

Edited March 19, 2014 by andyfr1968

[Skot Ruthless Teale 1,701]

581fps would be 11.99 ftlb at 16gr

[barrywhite 282]

and a lighter pellet will give you more power usually .

[Cedric 132]

Thanks for the info, if I work off 580 then I should not be far off . I've been trying to work out POA at close distances ( got some rabbits in my flower beds just under the window! ). I suppose I could just stick some targets at varrying distances and try them but I'm trying to drag myself into the 21st. century !

 

Skot - I see you have a 97K, do you think it's worth having it tuned, I only hunt with it.

[Skot Ruthless Teale 1,701]

If your alright with a spanner and screwdriver then get a few bits and bats.. aka some proper moly grease and some wet and dry 400 800 1200 and have a go on it yourself! like Marksman on here does on his 3 part video ..

 

http://www.youtube.com/watch?v=lhuteSRhDhE part 1

 

http://www.youtube.com/watch?v=Op64so6v4vA part 2

 

http://www.youtube.com/watch?v=Lbn0ehzkC40 part 3

 

If im 100 % honest my hw97 was nice when I got it but I followed this video and made it a lot better! I actually prefer it to my SFS tuned 98 !!

this will deffo improve your gun and make it recoil less and shoot smoother. even just for hunting its worth doing