SGW Gunsmith
Moderator
I do have a bore scope that I use to inspect .22 rimfire chambers, the leade, and then the barrel, for any issues that may be starting and could turn into a problem. The best method I've found to gauge the internal bore measurements, and then to find any tight, or loose spots, is to push a .22 slug through the bore. OK, how do I get the slugs to do that? I pull 'em from live rounds.
Now, and I know there's always one of two who are going to nearly faint at the prospect of pulling bullets from a rimfire case. Well, I do that, and without deforming the bullet and I haven't had even one round out of 300, or so, go off during the process. Here's the puller I made using some ½-inch PVC unions, end caps and a three-way section for the handle and end caps. The handle is a 5/8-inch wood dowel.
The end cap with the cartridge in it has had a #1 hole drilled into its center to capture the cartridge. A section of painters tape is put over the back face of the cartridge to keep it in place. Several whacks of the other end on a hard surface will create enough inertia to have the bullet come free and into the other end cap. There is a soft landing for the bullet created by using a gel rubber cupboard door bumper.
If anyone is interested, I can post pictures involving the "bill of materials".
Now, and I know there's always one of two who are going to nearly faint at the prospect of pulling bullets from a rimfire case. Well, I do that, and without deforming the bullet and I haven't had even one round out of 300, or so, go off during the process. Here's the puller I made using some ½-inch PVC unions, end caps and a three-way section for the handle and end caps. The handle is a 5/8-inch wood dowel.
The end cap with the cartridge in it has had a #1 hole drilled into its center to capture the cartridge. A section of painters tape is put over the back face of the cartridge to keep it in place. Several whacks of the other end on a hard surface will create enough inertia to have the bullet come free and into the other end cap. There is a soft landing for the bullet created by using a gel rubber cupboard door bumper.
If anyone is interested, I can post pictures involving the "bill of materials".