Short 336...
My take on this is disregard the hooey about muzzle blast (I don't even notice it at all), disregard the small velocity loss, if you like handy handling in a rifle, go for it either by cut or OEM. For example:
Take this:
Load up some 170gr bulllets (170gr Win over 29.0gr H4895, FC or Win Brass, Win WLR or CCI 200 primer) or get some el cheapo Federal 170's and get this at 100 yards with the scope on 5x:
By the way the net cost on the NIB 336 SDG was under $380 including shipping and FFL fees... I bought it and a 308SDT as a pair deal on GB and sold the 308 fire sale inside of 24 hours for c note more than it cost me. Sometimes you can find a SMOKIN deal on what you want.
Oh, it shoots LE ammo pretty well too (around and inch and a quarter to and inch and a half) but compared to the 170's, they shot pretty high.
If you like it, just do it. You will like the results and laugh at all the naysayers, many of whom have never shot or handled a minimal length rifle. Don't get me wrong though, nothing wrong with a 20" barrel on a 336, but I am SOLD on the easy handling shorties.
Be safe
Patty