I am missing the pin that appears to hold the bolt sleeve (Win#400) together with the bolt sleeve lock (Win #500). What is the name of that pin? It’s not the bolt sleeve pin (Win#700) which holds the bolt assembly inside the operating slide guide assembly. The pin would go through the pre-drilled hole seen in the bolt sleeve.

A gunsmith in Charleston, SC was able to reassemble my Winchester Model 100 rifle. Most importantly he was able to reassemble the bolt assembly by replacing all the required pins to hold the bolt sleeve, bolt, and bolt sleeve lock together. Of course, I had to order and provide him with all the required pins fitting in the bolt assembly. I test fired the rifle at an indoor range by shooting 20 rounds. There were no jams, and every fired cartridge was ejected well.