While doing some testing on some fresh reloads, had a slam fire. Loaded a single round in the tube without a mag and let the bolt slam home, sure got my attention. No harm done, outside, safe area. Made me look at what the floating firing pin was doing. Disassembled the bolt, clean firing pin and channel, no problems. Reassembled and took primed cases and tryed to do a repeat. Bolt slaming home makes about half the firing pin mark that a fired round gets. Wondered if it was just this carbine, so I broke out the other Winchester, same thing, guess it's normal. Primers seated properly below flush, CCI standard small rifle primers. Did a google search and found that I'm not the only one. Also says some have the same problem with M1 rifle, M14 ( M1A) and AR15, even the SKS. Took out my AR15 and sure enough, does the same thing, good primer mark. Acording to the web site, feeding from a mag slowes down the speed of the bolt some. One thing that I have changed is main springs on both of my Winchester carbines. Wondering if I might now have to long of a spring with to much bolt speed going ?? Sure could be a safety problem, these will end up in the hands of the grandkids.
Chris