We look upon the .311+ bore as odd when in fact it at one time it was the most common military caliber. The Russian Empire used it, the British Empire used it (Great Britain, India, Australia, Canada, South Africa) Argentina and Japan as well.
caliber talk
- Thread starter E.H.
- Start date
it's just that today there aren't as much selection choice as a 30cal bullet. which i think is a bit sad. i wonder if a hybrid .303 british or other cartridge using the same diameter of bullet would perform differently than what you normally find or if it would be the exact same or negligible difference in performance...
Bore diameter in and of itself really doesn't have much claim on accuracy or performance. It's relationship to bullet diameter does. - dan
I expect that if a good quality LE#4 can be converted tp 308 then it would also handle 7.62 X54 pressures . I have done up a Enfield P-14 to run 7.62 X 54 ammo and it involved setting back the barrel and adjusting the extractor and bolt face a bit . That worked out fine . Too much bullet jump if you did not set back the barrel .
The P-14 is a different beast entirely than the Lee Enfield. I was told by someone that was involved, that #4 conversions done by arsenals required radiography for critical components before being accepted for conversion. The OP has a No1 MkIII of WW1 or WW2 vintage, which is not as robust as the #4. (Yes, I am aware of the manufacture of 7.62 X 51 based No1 MkIII by Ishapore, but they utilized higher grades of alloy in their manufacture.)
