probably too late to weigh in on this.
I would check :::::http://www.reloadersnest.com/rifle.asp
Maybe you can find what you are looking for there.

In my browning rifle, the bullet is just seated into the neck area, it just goes in until it meets the shoulder. The rifling is far, and to seat the bullet .007 from the rifling the bullet isn't in the case too much. When the round is complete, I can still hear powder space by shaking the round. I know it sounds crazy, but this particular rifle shoots this combination fine. I have shot more than 500 rounds through it and it shoots .5" consistently @ 100 yrds. I own other rifles and this is the only one that is loaded that much above manuals. The rifle loves it, and I love the flat trajectory. I have a Nikon Monarch 6.5-20 44mm mounted on it and it is deadly on coyotes at long range(300-400 yrds). I started low and slowly worked up and was astonished that it kept getting better with the more powder I added. I just bought some 4007 ssc to try in another rifle. If it show good results I might play with it in this rifle.

If it ain't broke don't fix it.......

BadLand, I also have a rem. varmint laminated. It is a heavy barrel. I just finished working up loads with it. I use 39.5 grains of 4007ssc with 55 nosler ballistic tips. 3704 fps. Worst group is .46", best group is .19" at 100 yards. I shot 5, five shot groups (25 rounds) off of harris bipod, prone position on picnic table. No flyers shot at all. This powder is great in this rifle. Good luck.