Yeah, it's a totally different approach from a bolt action. I used to have some great links but I deleted them. Just google it and you'll find some great tips to get started. (Just make sure you shoot it first to see if it needs anything done.)

<"small gap behind the quarter rib"...are we talking about the scope mount?">

There should be a tiny gap behind the quarter rib/scope mount. If you can fit a cigarette paper or two behind it you're good (if the quarter rib is touching the action it may cause stringing).

<"Free float the barrel then try a pressure point?">

The pressure point I'm referring to would be between the barrel and the tip of the hanger...not the forend. The hanger attaches the forend to the barrel and houses the main action spring:



I had a stock 7mm Rem Mag that was stringing shots...it was shooting decent groups but it was still stringing everything. All I did was stick a wood shim (.5" by .5") between the hanger and barrel and voila...sub moa.

There's a ton of info out there on No.1's and you'll definitely come across some negative info. There'd be a lot less negative info if owners took a few minutes to learn how to set up their rifle though.