I took this old lady out to the range today , its a BSA Model 12 120 ish , originaly a .22 lr with a 1 : 16 twist , converted to .22 Remington Jet . The case is a necked down .38 , originaly developed in the US for a revolver , but it didnt work as the cases slid back in the chamber and jammed the cylinder .
The load I was using was 12 gns N110 with a Sierra SP [ Hornet ] CCI small rifle primers .
This is how I was set up on a bench at 25 yds , conditions was light rain .
The results
The cartridge
Dave