.30cal HW80 Barrel @ Kempton

[webb22]

I have to say 80s shoot really nice in .25, so I've no reason to suspect a 90 won't too.. I guess the larger cylinder dia (30mm) works well with the larger cal - lower back pressure to reduce piston bounce, and plenty of volume to keep the pressure up....

Great info thanks mr b

[greenwayjames]

The JSB pellets are to big for Harper polygroove brass .30 barrels which are closer to .295".I know of the whereabouts of a few tins of the correct ammo. I heard of a Harper .30" Sharp Innova conversion. Bet that went well

[Benelli B76]

Polymag 44.75 grn .30 calibre pellets on that forbidden bay zone. Think I will make up a .30 barrel conversion for a BSA Spitfire for fun, will probably see the pellet travelling at only 340 fps.

Baz

[cozzamec]

Polymag 44.75 grn .30 calibre pellets on that forbidden bay zone. Think I will make up a .30 barrel conversion for a BSA Spitfire for fun, will probably see the pellet travelling at only 340 fps.

Baz

That will be fun Baz, let me know if do and I'll come over for a shoot!

[webb22]

Polymag 44.75 grn .30 calibre pellets on that forbidden bay zone. Think I will make up a .30 barrel conversion for a BSA Spitfire for fun, will probably see the pellet travelling at only 340 fps.

Baz

There’s an idea. Maybe I should give Bowkett a call...

[webb22]

The JSB pellets are to big for Harper polygroove brass .30 barrels which are closer to .295".I know of the whereabouts of a few tins of the correct ammo. I heard of a Harper .30" Sharp Innova conversion. Bet that went well

I saw one for sale recently and was snapped up pretty quickly!