Rifling cuts

[m4carbine]

M1 Garand barrels were broached during the war as were Carbines and later M14's.

M16 are buttoned in the US, Canada has it right and hammers their barrels, longer ware.

Hammer forging video

[Lee Enfield]

I'm assuming late war time as the broaches had a date on the tag when I got them. They walked out the door during the later part of the war (so I was told) and sat for years in a shop and then came to me. I have had them for probably 40 plus years. I think he said they came from the Bren barrel line...but would not bet the farm on it. The mind is the second thing to go.
I also got a handful of trepanning drills (barrel drills) with the broaches as well and will also try and find those.

What was it like?

This claims to be a wartime photo (bottom left of group).


But it might be Inglis as there are Inglis photos mixed in with SAL photos.

I always note the "squinting" method of eye protection in these war-time photos...