tillbrook 24 Posted March 8, 2014 Report Share Posted March 8, 2014 Can anyone tell me what ft lb a ruger .22 does please Quote Link to post
andyf 144 Posted March 8, 2014 Report Share Posted March 8, 2014 Yes! First you need to spend £120.0 on a chronograph (still interested)? Then fire YOUR RIFLE across it with the ammo you use, and write down the result. Now the sums start, first multiply the velocity by itself (Squared, If you have a maths GCSE) Forget it now if you don't have any GCSE's!! Then multiply that by the bullet weight in grains (usually 42'ish) then divide the lot by 450280. The answer on your calculator is Ft/Lbs. Glad you asked??? AF Quote Link to post
Alsone 789 Posted March 9, 2014 Report Share Posted March 9, 2014 (edited) Rimfire or FAC Air? RImfire is approx 190 ft lbs with supersonic and around 100 ft lbs with subs. Win Mag 300 ft lbs. Edited March 9, 2014 by Alsone Quote Link to post
Alsone 789 Posted March 9, 2014 Report Share Posted March 9, 2014 (edited) I should have said above of course that it varies from ammo manufacturer to manufacturer, and bullet type and weight. However, you're not going to see much deviation from those figures. The rifle's going to have very little influence unless you have a very short barrel in which case you may see a slight difference due to length. Edited March 9, 2014 by Alsone Quote Link to post
tillbrook 24 Posted March 12, 2014 Author Report Share Posted March 12, 2014 Ok thanks alsone Quote Link to post
.357shooter 1,387 Posted March 15, 2014 Report Share Posted March 15, 2014 with mine shooting cci mini mags and using a f1 chrono i got 130ft/lbs Quote Link to post
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