- Joined
- Mar 25, 2020
- Messages
- 108
I have a .22LR Ruger 10/22 rifle that I want to convert to shoot standard ammunition subsonic. A standard barrel would accomplish this somewhere between 4" and 5" long. Cutting the barrel to less than 16" creates a SBR which is a big hassle. I am considering using a long piloted bit to overbore the forward 12" of my standard 16.5" barrel.
Challenges I am considering:
Challenges I am considering:
- Long Piloted bits are not as available as I had hoped.
- I worry that turbulent gasses passing the bullet in the over-bored barrel will contribute to projectile instability.
- Thinking of over-boring the entire barrel and inserting a 4.5" liner with a 9" twist on the chamber end to mitigate the line above.
- I did note the rules for target rifle competition specifically allow for barrels that are not rifled full length and wonder what they had in mind.
- Worried that any crown recessed 12" will be difficult to properly dress.
- Wondering as dirty as .22LR ammunition is if cleaning the fore-bore will be problematic.
- Still anticipating threading muzzle 1/2x28. I see some 9mm threaded 1/2x28 so think an 8mm over-bore will be easy to accommodate.