Lol I understand then to high level and I get to see the computer data on the down range energy
Some are up to 33% different
Ps plastic and fibre don’t come out at same speed or energy
Fibre wads and Obturator cards are nominally 18.9mm diameter.Maybe there is a reason to use tighter bores in hunting guns, for example you could order an MX12 with 18,4 mm or 18,7 mm bores. Often hunting cartridges use fibre wads. The tighter bore seals them up.
1, they are not the same diameterThen provided they are exactly the same diameter and type (i.e mass) then they left the muzzle at different velocities and that would be confirmed by the velocity for CIP at 2.5mtrs, unless you have solve the problem of dark energy. Newton would be pleased.
Quite simply K.E = 1/2 MV2
Agree mate but they don’t show you the energy drop that’s fine by much more advanced testingo
Fibre wads and Obturator cards are nominally 18.9mm diameter.
Now I know Ben is no lover of pattern plates but for cartridge testing they have a use. A poor fibre wad cartridge can be consistently seen to blow the pattern. Which is unlikely if the obturator card is swapped for a plastic obturator.
1, they are not the same diameter
2, one is soft and changes shape with ease
3, over time one gets worse
Agree mate but they don’t show you the energy drop that’s fine by much more advanced testing