lately i havent been able to find 7.62x54r for any cheaper than 8mm.
mil surp in both calibers are easily available, but are fetching around $0.35 per round.
as opposed to 30-06 which is costing me around $0.55 per round.
while 308 for contrast is at about $0.35 for wolf and $0.50 for brass cased fmj.
i have noticed 7.62x54r and 8mm go back and forth at different times, i never know whats gonna be on sale or not.
and IMO
the Mosin was great when it was $50 bucks, other than for a wall hanger to round out a collection, i wouldnt pay today's prices for what you are getting performance wise.
Mauser is the better rifle choice. most accurate, strong action ect...
for the record, the enfield is an ok rifle (smoother faster action), and its very accurate as well.
but i have always felt my mauser is more solid a weapon than my SMLE, and 303brit is like $0.70 per round, and I have never been a big fan of the 303 calibers ballistics when compared to other WWII long action calibers.