I have watched the youtube videos on resizing 3006 brass, the only problem is that I have not located any reasonably priced supplies. It seems even more expensive to obtain 30-06 ammo than 8mm ammo and I don't have anything to shoot the 30-06 rounds in....
I this weekend fitted a new stock to my Remington 700 and it really made a huge improvement to my group sizes, even before I did a bedding job to it. It was a stock from https://www.stockysstocks.com/servlet/StoreFront
There is a version of the stock for mausers too.
The one that I wanted was this one:
The one I was after is the bottom one (laminated black grey) with aluminum bedding block. Turned out they didn't have the color I wanted so I looked around and found another stock I thought was identical (and it is externally) but it turned out it didn't have the aluminum bedding block. The vendor is relocating their manufacturing and are recommending to buy only what they ave in stock until they get production re-started at the new location.
But for $156 + shipping, it is the biggest single improvement I made to the rifle. I went shooting today and the rifle is shooting less than 1moa for the first time ever. This is with the 150gr Hornady spire point bullets. I would imagine that adding the hart bedding block will make the rifle more consistent over time, and one could also swap any 700 action into the stock in 2 minutes with no bedding needed.
The stock positions the right hand wrist in a more optimal position relative to the trigger, so my trigger finger was not cramping. It also comes fitted with a thick decelerator style pad, something else I was not looking forward to fitting to my standard stock. Lastly, the barrel is fully free floated and the fore end is wider to provide a better support for prone or rest shooting.