I inhiereted a No.1 Mark 4 Endfield with a shot out factory .303 barrel. With the Mark 4 and the Ishapore .308 being basically the same action, I was wondering if anyone knew of a cheap place to purchase new, factory Remington barrels in order to make this cherished hand me down back to shooting again? I would be interested in a .308 cal as a first choice, and not the .311 of the factory .303 British round. .284 cal would be a second, with a .358, then a 6mm rounding out my possible ideas. Thanks for any info you may provide.