gunfun 3,931 Posted May 30, 2014 Report Share Posted May 30, 2014 Energy = mass x velocity. Seems like removing the mass (all those pretty holes) would reduce energy. You would gain a short burst of velocity with the same energy (the powder charge) but it would slow quicker and hit a lot less harder. Seems like cnc machining bullets is all the rage: http://blog.rtba.co/3-reasons-dont-need-latest-g2-research-rip-cartridge/ Kinetic energy actually is mass times velocity squared (ek=mv2), so while a loss of mass will have a negative effect on the projectile's energy proportional to its magnitude, an increase in velocity will have a positive effect proportional to its magnitude squared. Your equation is for momentum (p=mv, where "p" is momentum), which is more likely to play a part in determining the bullet's maximum range. Bullets have been working fine for 100s of years.....when will they learn. Bullet designs have been advancing for hundreds of years. Not every step has been a step forward, but thanks to the proliferation of precision manufacturing technologies, more innovations can be made. Unfortunately, some new designs, like that bonesaw bullet that made the rounds on the web recently, are obviously not steps in the right direction, and manufacturers with limited budgets still have to try to offset their R&D investment by marketing their mooncalf products using hype-tastic advertising. This design does look like exactly that kind of nonsense. Actually, the first thing I thought of was an old Simpsons episode: Sort of ironic, really. "Speed holes" used to be actual real tech. In the post WWII era, people took the aviation ideas and applied them to modified cars and motorcycles. One of those was that you could drill holes into overly heavy parts, particularly webbing and gussets and take weight out without sacrificing too much strength. Round holes don't create as much of a focus for shear energy so there was some sense to it. Mostly it was done to things that needed to fill a space but were not stressed. i.e. brake pedals, the gussets that hold things like tanks and seats, mounting brackets... Quote Link to post Share on other sites
XD45 7,124 Posted May 30, 2014 Author Report Share Posted May 30, 2014 When I first saw the holey bullets I thought they were going for the same effect they use to reduce drag in aircraft, or maybe the effect of dimples on golf balls to reduce drag. Those things may not work when applied to bullets but at least they're real. The "rocket like effect" is just idiot bait. Quote Link to post Share on other sites
Long Shot 1,287 Posted May 30, 2014 Report Share Posted May 30, 2014 The "rocket like effect" is just idiot bait. Exactly what makes it so precious. 1 Quote Link to post Share on other sites
magsite20 1,664 Posted May 30, 2014 Report Share Posted May 30, 2014 (edited) this is just where some people have some very expensive Swiss turning machines looking for something to make some other people separate themselves from a dollar with. no doubt in my mind some people will buy into the rocket effect. there are a lot of different bullets out there now so what's a few more? Edited May 30, 2014 by the 4th Doctor Quote Link to post Share on other sites
macbeau 902 Posted June 5, 2014 Report Share Posted June 5, 2014 Do you know what also has (had) a rocket-like effect? The Daisy Gyrojet... http://en.wikipedia.org/wiki/Gyrojet Why aren't we all carrying these around today? Again - a solution seeking a problem. Macbeau... 2 Quote Link to post Share on other sites
Capt Nemo 882 Posted June 6, 2014 Report Share Posted June 6, 2014 Ah.....the old rocket gun from "You Only Live Twice"! Quote Link to post Share on other sites
Sdustin 578 Posted June 6, 2014 Report Share Posted June 6, 2014 The rocket gun is cooler than the holy bullet Quote Link to post Share on other sites
kevinfreel 215 Posted June 6, 2014 Report Share Posted June 6, 2014 Yeah at least it shoots rockets! Quote Link to post Share on other sites
uzitiger 193 Posted June 7, 2014 Report Share Posted June 7, 2014 Sounds like more bullshit to make bullets/ammo more expensive. More tech and engineering=more cost to produce. What effect do these holes have on bullet stability and drag? Quote Link to post Share on other sites
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