There is no grant for night shooting ,the .22 centre fire,if owned , is your designated fox rifle and lamping is accepted as part of its use but because you own the .22 centre fire ,any lamping done with the .243 or bigger would be illegal because its not your desgnated fox rifle and the FEO looks on its use after dark as deer poaching ,at least in WILTSHIRE anyway .Check it out mate .I was astonished too .
Ps- .22,50 is a .22 centrefire