new barrels for .303 Lee enfield?

[Dantforth]

Bore size for 5 and 7 groove barrels....

There is a formula that is used after taking a measurement across lad to groove. The guys on the British Militaria board can tell you. They have the problem with Martini Henry barrels which are all 7 grooves.
Dave

 

[josquin]

There is a formula that is used after taking a measurement across lad to groove. The guys on the British Militaria board can tell you. They have the problem with Martini Henry barrels which are all 7 grooves.
Dave

Thanks, Dave. I vaguely remember reading that when I was in "Martini mode" after I bought that rifle a couple of years ago.

Stuart