"What we call a rim-fire saddle," laughed Searles, who joined the conversation.
It is also made for rifled small-arms especially for rim-fire rifles.
The chief faults of the rim-fire cartridges are danger and unreliability caused by the action of heat on the lubricant.
You say, Mr. Hale, the prisoner told you the night you spent at his home that this rifle was rim-fire?
Prob'ly they're center-fire ca'tridges for rim-fire guns, or vicy-versy.
In rim-fire cartridges the .22-calibre conical-ball cartridge is used in considerable quantity.