Here's Oregons angles for reference. [ATTACH]
I'm not even remotely qualified to school anyone regarding square grinding. Paging SquareFile Moparmyway mdavlee
Now you need to figure out a fixture so you can convert your surface grinder into the sweetest square grinder ever.
[ATTACH] I used mine a few times, but I found my tail gate mounted vise much much much more versatile and useful.
My old ruger m77 tang safety has horrible stick geometry which lends to higher perceived recoil. It's in 270 win, but might as well be a 270wsm.
I've wanted one of these for years
Where did you aim it? Mine will pick up spark from probably a foot away if it's aimed at the plug.
Sweet score, those litter carriers Can run for some crazy dollars at surplus.
I've never burned willow but heard the smell isn't pleasant.
These are probably going to suffer the same fate as the Gamn sharpeners.
They are all over the Mississippi River flyway
[ATTACH] Here's some dull square
Yep
Looks tedious and time consuming to set up. The carbides aren't cheap either.
Awesome I've always wanted to make a trip out there and give it a go!
You can get the tires surplus
Splitting or falling?
Same issues here. I ended up reinforcing the top strap with some angle iron.
Other than a crank, it may not be a bad idea to replace rings and or piston. You won't really know until you start tearing into it.
Request a copy of the 290 shop service manual and go to town. If you find yourself struggling with it, if you get the parts and handle shipping...