Q:

What are bore dimensions of barrels made by LW, Crosman, BSA

Has anyone here measured bore sizes of barrels made by different manufacturers?
What are the bore dimensions of LW barrels used in Airforce guns? Do they measure more than 5.5mm at lands?

Mods/Machinists

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Viewing 6 replies - 1 through 6 (of 6 total)

quote Spartan:

Has anyone here measured bore sizes of barrels made by different manufacturers?
What are the bore dimensions of LW barrels used in Airforce guns? Do they measure more than 5.5mm at lands?

BSA 25 cal barrels are notoriously tight, most pellets would need resizing before use in them.

is it a 20cal barrel

Wow. a .210 bore is way too tight. I’d look for measurement error there as even the choke should not yield a dimension that small….

quote Voltar_1:

quote Spartan:

Has anyone here measured bore sizes of barrels made by different manufacturers?
What are the bore dimensions of LW barrels used in Airforce guns? Do they measure more than 5.5mm at lands?

barrels are measured to the grooves

why would you want to measure to the lands?

LW is .216 bore and 0.221″ to grooves IIRC

Thank you Voltar for your kind info. I had came across a Talon with a barrel measuring .210″ bore which was giving lot of trouble with many brands of pellets & wanted to know if gun is not performing at it’s best or a barrel is a culprit.

Anyway thanks a lot for accurate No.s.

quote Spartan:

Has anyone here measured bore sizes of barrels made by different manufacturers?
What are the bore dimensions of LW barrels used in Airforce guns? Do they measure more than 5.5mm at lands?

barrels are measured to the grooves

why would you want to measure to the lands?

LW is .216 bore and 0.221″ to grooves IIRC

Bump. Can someone here come forward with this info please.

Viewing 6 replies - 1 through 6 (of 6 total)

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