At one time I owned a G19 in 9mm and a G23 in 40 S&W. I once picked up the wrong mag at the range and fired a 9mm round through the 40 S&W. It went bang, I missed the target and the action didn' cycle. I manually ejected the brass and found a 9mm case necked up to 40 caliber. It didn't hurt anything, but that was the moment I decided I could live without a 40 S&W pistol. Especially since I also had a 10mm.
I also had a 280 and 30-06 at the same time. One piece of 280 brass once got mixed in with my 30-06 brass. I caught it when resizing and one piece of brass was a little tight. That was also the moment I realized I didn't need both a 280 and a 30-06.
I have a game warden friend who once arrested a night hunter. My friend SWEARS the poacher fired a 35 Rem cartridge from a 7mm Rem Mag. without blowing up the rifle. Seems impossible to me, but he says it happened. The only thing I can think of is the much shorter 35Rem case fit in the chamber much like a 300 BO in a 223 chamber. How a 35 caliber bullet squeezed through a 28 caliber barrel without blowing up is the part I don't understand.
I also had a 280 and 30-06 at the same time. One piece of 280 brass once got mixed in with my 30-06 brass. I caught it when resizing and one piece of brass was a little tight. That was also the moment I realized I didn't need both a 280 and a 30-06.
but no, we cannot fit ALMOST any larger caliber cartridge into a smaller caliber relative’s chamber.
I have a game warden friend who once arrested a night hunter. My friend SWEARS the poacher fired a 35 Rem cartridge from a 7mm Rem Mag. without blowing up the rifle. Seems impossible to me, but he says it happened. The only thing I can think of is the much shorter 35Rem case fit in the chamber much like a 300 BO in a 223 chamber. How a 35 caliber bullet squeezed through a 28 caliber barrel without blowing up is the part I don't understand.