Had a squib load in a box of Wincherster .45 Colt Cowboy loads today. Bullet lodged in the barrel of my new NEF Survivor .45 Colt rifle, and was quite the pain in the ass to dislodge. The rifle is fine, no bulges or damage, but Winchester is about to get a snotty letter from me.
So, if you’ve got some Wincherster Cowboy Ammo in .45 Colt, watch yourself. A squib load in a single shot rifle is pretty easy to detect, but might not be so easy in a wheelgun or lever-gun.