by Tom Gaylord
Writing as B.B. Pelletier
This report covers:
- Must load from the front of the cartridge
- Sizing pellets to fit into the mouth of the case
- How deep is the pellet seated?
- A lot of “stuff” to support the adaptor
- The stuff
- The test
- Shot 4
Today we look at the accuracy of the firearm pellet adaptor. This is what we have been interested in all along. In Part 2 we saw that the velocity was stable when the pellets were loaded deep inside the neck of the adaptor, but not when they sat proud. That generated several questions that I will address before I get to the test. Everything I do today was done with the .22-caliber JSB Exact Jumbo pellet.
Must load from the front of the cartridge
Several readers wondered what might happen if the pellet was pushed in from the rear of the cartridge, rather than loaded from the front. The dents at the base of the cartridge case shoulders prevent that from happening, though I expect you could push a pellet through if you used a lot of force.