colin lad Posted March 22, 2011 Report Share Posted March 22, 2011 i know cartridges are not measured in ft lb but i was just wondering if it could be done what sort of ft lb an average 32g 6s would be putting out at the muzzle, i am just trying different carts at the moment and reading up on some so it just got me thinking, also i have a box of 50g ssg with 10 pellets in with a muzzle velocity of 1375 fps as they would weigh as much or more than a 40grain lr subsonic round and travel faster than a 22lr sub would each ssg pellet have more ft lb than a .22lr round??? colin Quote Link to comment Share on other sites More sharing options...
Bleeh Posted March 22, 2011 Report Share Posted March 22, 2011 Working out as a big, solid slug (In other words the velocity that the shot has before it leaves the barrel). If the 32g 6's have a velocity of 1375 fps, with 32g weighing some 493.84 grain. It would have a outward force of ft/lbs of 2073.68 to bring it 1375 fps. (But bare in mind this area of pressure is over a much larger area of bore than say a .22 rifle) This is rought math, I'm not even that sure, so please feel free to poke holes in it. For your SSG question each would have more ft/lbs behind it because they would be going super-sonic unlike the sub-sonic .22lr. Quote Link to comment Share on other sites More sharing options...
Guest cookoff013 Posted March 23, 2011 Report Share Posted March 23, 2011 measurement of the muzzel velosity is a funny one. but yes,thats about right. Quote Link to comment Share on other sites More sharing options...
HW682 Posted March 23, 2011 Report Share Posted March 23, 2011 (edited) Hull cartridge website is good for this sort of thing.. http://www.hullcartridge.co.uk/products/game/special_pigeon_12.cfm?chart=3&button=View It lists each pellet from 32g 6 pigeon special as 2.74 ft.lb at 20m. With 288 pellets in the cartridge that gives 2.74 x 288 = 789 ft.lb (From memory some of the heavier loads can be in the region of 2000 ft.lb) Edit: 50gm BB load; 11.97 x 125 pellets = 1500 ft.lb at 20m. Edited March 23, 2011 by HW682 Quote Link to comment Share on other sites More sharing options...
colin lad Posted March 23, 2011 Author Report Share Posted March 23, 2011 Hull cartridge website is good for this sort of thing.. http://www.hullcartridge.co.uk/products/game/special_pigeon_12.cfm?chart=3&button=View It lists each pellet from 32g 6 pigeon special as 2.74 ft.lb at 20m. With 288 pellets in the cartridge that gives 2.74 x 288 = 789 ft.lb (From memory some of the heavier loads can be in the region of 2000 ft.lb) thanks guys was just curious colin Quote Link to comment Share on other sites More sharing options...
Dekers Posted March 23, 2011 Report Share Posted March 23, 2011 (edited) i know cartridges are not measured in ft lb but i was just wondering if it could be done what sort of ft lb an average 32g 6s would be putting out at the muzzle, i am just trying different carts at the moment and reading up on some so it just got me thinking, also i have a box of 50g ssg with 10 pellets in with a muzzle velocity of 1375 fps as they would weigh as much or more than a 40grain lr subsonic round and travel faster than a 22lr sub would each ssg pellet have more ft lb than a .22lr round??? colin The standard SG load produces 1980ft lb from memory (I know it is just below 2000), so a SSG is likely to be just below that. Load energy decreases as the shot gets smaller, small lumps are difficult to accelerate and just do not retain their energy well! EDIT I have SG Carts, but I have never even seen SSG, let alone used them, what do you intend to do with them? Cheers Edited March 23, 2011 by Dekers Quote Link to comment Share on other sites More sharing options...
seeker Posted March 24, 2011 Report Share Posted March 24, 2011 According to Lyman 5 ... SSG= 00 Buck ? and a M/v of 1325 gives each pellet 210 ft/lbs But for 10 pellets to 50 gm you're looking at LG /000 Buck. I've seen SSG marked loads in 'special loads' in S.Africa' ... they were kept for Baboons, which I gather, soon learned to keep out of range anyway. But whichever, its goin to hurt whatevers at the receiving end... Just a thought - since each pellets hits separately is it right to work on a combined energy, especially given pattern density at a distance??? Quote Link to comment Share on other sites More sharing options...
seeker Posted March 24, 2011 Report Share Posted March 24, 2011 According to Lyman 5 ... SSG= 00 Buck ? and a M/v of 1325 gives each pellet 210 ft/lbs But for 10 pellets to 50 gm you're looking at LG /000 Buck. Eley diary lists SSG but at other weights ... so which SSG is it !! I've seen SSG marked loads in 'special loads' in S.Africa' ... they were kept for Baboons, which I gather, soon learned to keep out of range anyway. But whichever, its goin to hurt whatevers at the receiving end... Just a thought - since each pellets hits separately is it right to work on a combined energy, especially given pattern density at a distance??? Quote Link to comment Share on other sites More sharing options...
colin lad Posted March 24, 2011 Author Report Share Posted March 24, 2011 (edited) The standard SG load produces 1980ft lb from memory (I know it is just below 2000), so a SSG is likely to be just below that. Load energy decreases as the shot gets smaller, small lumps are difficult to accelerate and just do not retain their energy well! EDIT I have SG Carts, but I have never even seen SSG, let alone used them, what do you intend to do with them? Cheers i wanted a few carts to take out in case i came across mr fox when i asked in the shop thats what they sold me, i got a box of 50g 0s 10 for £9 and a box of these ssg with 10 pellets in they were £8.50 for 5 so shall be using them sparingly colin i think 00/sg are 8.1mm and ssg are 7.9mm Edited March 24, 2011 by colin lad Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.