Quote Originally Posted by Mikeymoo View Post
I feel sure the Cobra Stike was the first post war .25 air rifle. Although it was only .243 as they used Winchester mandrels to make the barrels and so only 6.17 mm.....most .25 pellets are 6.35mm and are tight.
I use Marksman and with their high lead cont they go through a .243 pellet sizer easily.
Mine is currently doing 11.6 ft lbs.....not bad for an old Mercury !
No it was not !.

Manchester Airguns developed the MAG Mercury Magnum which was a BSA Mercury Mk 3 available with .177. .20, 22, .25 barrels in 1979 / 1980.


The .20 and .25 barrels were opened up from .177 and .22 barrels by Gerald Cardew.

BSA themselves offered the . 25 BSA 635 Mercury around 1988. They also then started offering other models with a .25 option
barrel.

M&G offered the model 45 in .20 and HW had .20 and .25 barrel options to special order in the early 1980's.