Without reading the entire thread.... I got to shoot one, once....
it had been loaded with 200 gr bullet, loaded with RL 7...
The recoil felt like a 22.250 recoil.... a lot lighter than I expected... but it had no problem shooting flat enough to hit a rock I was using as a target at 200 yds..
never ever figured I needed one... I still don't need one, but if one came my way, I would certainly purchase it.
The one I shot was made on a 1909 Mauser action with a nice Fajen stock.
Right now, my fav three .358 Win powders are RL-7 for lighter bullets, X-Terminator and TAC for others. My gun is a 12 twist, but does seem to favor lighter bullets.
DF