I think the trick with the dylon hand dyes and wool, is to begin by using near boiling water, agitate it every hour for the first 3 hours, [not much] but make sure you leave it in fully submersed for at least 12-14 hours. It doesnt dye the wool as well as cotton, but it does work.
Ive rinsed it by hand, but rinsed it a lot. I cant see it bleeding any more out.
The mackinaw I dyed in the bathtub with a few kettles of boiling water, machine rinsed it, and it has dyed evenly, but not masively. its a bit darker than the trousers. Again left it for 14 hours. And used a bit more salt than they suggest. Maybe an extra third.
mackinaw took 3 hand dye packets, hat took one.
But you can simply cut out the cotton liner of the swedish m39, with a small penknife. Just leaving the bottom two pockets intact. top pockets are wool backed, before you dye.
I comes out a lot lighter in weight, without the cotton liner, and for the money i cannot see much difference between this and the uber expensive filson macinaws.