Why don't bullets use holes within the projectile to direct a spinning motion using the gases from the propellant without utilizing a rifled barrel?
Posted by CupRevolutionary5599@reddit | Firearms | View on Reddit | 8 comments
ZombieHoratioAlger@reddit
Just for a start, that gas port would require extremely precise manufacturing on single-use components. You'd have to do expensive work on every single bullet, each step compounding the barriers to accuracy
homemadeammo42@reddit
Congrats. You just reinvented the gyrojet.
https://youtu.be/98c2t_uK5Uo?si=GvYfMjocOMxQvRTN
CupRevolutionary5599@reddit (OP)
Yeah, that's the main reason why I asked this in the first place as I was watching Brandon Herrera's, I thought "What if the Gyrojet's stabilization principle was used on standard firearm ammo?". :P
ceapaire@reddit
You mean like the gyrojet? Because those weren't great for a number of reasons, and rifling a barrel is far cheaper than manufacturing complicated ammo.
For a regular powder behind the bullet type round? Blowby in the barrel to cause it to spin would significantly reduce velocity. In addition, the added holes would both increase drag and counteract the spin once air is rushing in through the front.
Deeschuck@reddit
In addition to the other responses, any holes that imparted spin from propellant gasses would cause rotation in the opposite direction from airflow once the bullet left the barrel.
Glum-One2514@reddit
Manufacturing them would be complicated and expensive.
Onetap1@reddit
You'd need a lot more gas than could be compressed into most small-arm bullets.
See Gyrojet.
Genpatz8@reddit
Because you burn too much propellant getting the bullet to spin. Better to just use that gas to propel the bullet forwards.