Hi Raimey

Thanks for the info.
Thanks for the info.
My next step would be to obtain some Dummy samples of the rounds to try in the chamber I presume,
Or would it be best to offer to a reputable gunsmith to ascertain, and have the rifle tried and proofed in the UK, to obtain the correct caliber to offer the registration authorities when registering the weapon,
This gun has been handed down to me by a close friend,
(Now deceased)