ssj: I would imagine the original dispersion specs would have been similar to most contemporary rifles- 3 or 4 MOA. I don't believe I've ever managed to locate original specs for stocking up but internet concensus seems to be a few lb up-pressure at forend tip. I assume it should be similar to the stocking up procedure for Model 1903 rifles which call for 5 lbs to pull barrel up to nosecap. I found one of mine required fairly significant shortening of the front collar to get good clamping of the wood. Both mine will do two inch groups at 100 yd if I work at it. If you ever locate original factory specs for stock fitment please post it.
Ridolpho