Barrel question for Replica N0 4 T Sniper

[bigduke6]

I will do as much reading as possible but i do get sidetracked easily at times. I have done a fair amount of research but often find conradictions that drive me up the wall.
For instance i was told that all No 4's were fitted with 2 groove heavy barrels as standard ...

JasOn, stick to this forum and you wont go wrong, other forums tend to have a high percentage of armchair experts......