Odd 03 Bbl.

[Thomasm]

Here awhile back I posted a thread about a friends 03 Barrel, it had a slot machined into the muzzel end that was perpendicular to the bore. John B. replied(if I remember correctly) plus a few others that it was probabley done after issue by someone for a specific purpose. Well there are 2 of them on Gunbroker that are identical to the one my friend has. I would love to have somebody look at them and comment(John espeicially) They are at the bottom of the page listed as "1903 Springfield barrel".

[Fred]

Every 1903 barrel has these. It's where the pin goes through to keep the front sight base sleeve from slipping off the barrel.