Air Gun Home :: View topic

luxton · New Member

Hi again Group

Does anyone know of a gauge to measure pellet diameter other than calipers? A quick Over/Under type of thing such as a .177 hole drilled in a block of metal?

Most pellets can be seated with a slight push of the thumb, but some protrude and require a bit of effort to seat while others fall right into the chamber. I'm searching for a method to quickly eliminate the over/under sized pellets that contribute to poor accuracy.

Calipers are the obvious choice but a lot of work for mere plinking.

BTW, if I do stick a bad pellet in the rifle, an easy way to extract them is with a length of curtain shock cord. It has a strong steel coil in a rubber coating which gives strength with no chance of damaging the bore.

Thanks

Alstone · Moderator & Site Supporter

You can buy .177 pellets in sizes from 4.48 to 4.52 so it depends what size you want, you could drill a series of holes of different sizes and check the head size of a pellet, but I think it would be difficult for the skirt as these can vary considerably.

I use a vernier gauge set to the size I want then rest the pellet on the gap and see if the head falls through, or if you know the size you want then get a pellet sizer to suit, this is just a block of steel with the correct size hole and you just push the pellet through.

Al