Thank you for your input.
I assumed the 7.5 * 55 Swiss Ordnance Cartridge uses a 7.5mm Bullet.
The fact that it uses a 30 Cal. Bullet (.306) is very good news. It would also reduce the cost of this Project considerable and would allow the use of 30Cal sabots for the .22 Cal Bullets.
Thank you
Cheers
7.5x55 is a fine cartridge. The Swiss had this stuff figured out long ago - they adopted a virtual 7.62x51 military round about 50 years before NATO did.




















































