Thread: ERMA-WERKE Model E M1-22

Thanks for the feedback and suggestions.

Yes, I agree with Isaac Newtown, "For ever action there is and equal and opposite reaction." Which in firearms speak means there must be an optimal combination of bullet weight, powder charge, velocity and therefore, rearward inertia to operate the the semi automatic action.

In additional to the operation of the action, there is also smoothness of round feed from the magazine to the breech, this could be impacted by projectile shape, then the final part of the equation is accurate grouping and knock-down effectiveness.

I've dug deep into by squirreling and have found six different 22LR projectiles to try:
- Winchester Subsonic 42grn Max HP @ 1065fps
- Winchester 555 HV 36grn HP @ 1280fps
- CCI Subsonic 40grn HP @ 1050fps
- CCI Standard Velocity Target 40grn SOLID @ 1070fps
- CCI HV 40grn Segmented HP @ 1235fps
- Browning BPR 40grn HP @ 1435fps

So within that sample of bullet shapes, bullet weights and velocities, I hope to find the sweet spot.