Why not just use a 48WJS?
Ding ding ding ding ding!! We got a winner!
Try the Lyman 48WJS and then try that woefully lacking in adjustment Skinner, and if you still prefer the Skinner you can re-sell the Lyman easy-peasy. The Lyman 57 is functional, for sure, but it just ain't a Lyman 48.
But it does beg the question: why do you need to drill more holes in the receiver? They came d/t'ed for both receiver sights and scope mounts from the factory.
And another question, out of curiosity, what's the perceived advantage of .358 over .308? Animal to self: "Boy I'm sure glad that hunter only shot me in the chest with a .30 caliber bullet. If he'd nailed me with a .35 I'd be a goner."
