Hommer,
Ross Seyfried wrote an article about patching 0.308" to 0.318" many moons ago ... may pay to chase up the article.

Whilst it's fun doing stuff because it's there to be done ... perhaps consider chucking Bertram's 404s downrange (checked last night and he makes a 400gr) when you want to save some money over the Woodleighs.

Casting, patching etc is fun ... if you have the time for it. Oddly ... tends to be the retired mob that do it most!But if I ever build a 404 rifle ... I'll be drawing 44magnum projectiles down for my plinkers, then sucking it up when chasing deer and using the Woodleigh's etc...
Cheers...
Con