Any experts out there on the relationship between the firing pin striking energy and 22 Long Rifle consistency and velocity? I have been testing a variety of hyper velocity 22 ammo in different barrel lengths and actions, and found everything locical and consistent EXCEPT for Aguila's new 30 grain hyper. From 18 and 22 inch marlin bbls, it does about 1500 fps, but shows wide 150 fps variations in both bbls. The 22 inch is more consistent, but the averages are the same. However, in a 26 inch rem bolt action they clock 1745 fps with an extreme spread of only 18 fps.
The long 26 inch bbl has NO effect on velocity and consistency for CCI, Federal and Remington competitors. The 18, 22 and 26 inch bbls all give about the same velocity and spread. Then along comes Aguila and gains 245 fps and finds consistency in the long bbl.
I can only figure that the dominant variable is not bbl length, but could instead be firing pin energy. The 26 inch is a single shot where you arm the pin by pulling a knob back, and it seems to really crush the daylights out of the rim.
Can such a thing give you 245 fps and an 18 fps spread? It does not have the same effect on the other ammo.
The long 26 inch bbl has NO effect on velocity and consistency for CCI, Federal and Remington competitors. The 18, 22 and 26 inch bbls all give about the same velocity and spread. Then along comes Aguila and gains 245 fps and finds consistency in the long bbl.
I can only figure that the dominant variable is not bbl length, but could instead be firing pin energy. The 26 inch is a single shot where you arm the pin by pulling a knob back, and it seems to really crush the daylights out of the rim.
Can such a thing give you 245 fps and an 18 fps spread? It does not have the same effect on the other ammo.