My woods load is a tier 2 load, the 13g of HS-6 under 255g SWC (1100fps) which is all I think I'll ever need. Safe in all my Ruger .45s and I really don't think I am 'hot rodding' anything. But normally (my goto load) I like to shoot Green Dot under a 250g RNFP which is around a 900fps load. Much more pleasent to shoot for general shooting and still will handle most animals out there including the two legged soft skinned animal if necessary.
Problem is that they hurt my wrist, and I don't enjoy shooting them.
Yep... When there is no reason .... make the loads 'fun' to shoot. No need for elbow and wrist problems.
Answering the question, never loaded to 'then some'. Ruger Only Loads (Tier 3) is rated up to 30K, and Linebaugh did tests that blew the cylinder at 60K, so ~30K is the most I'd attempt (if I somehow got the stupid urge to go Cape Buffalo hunting... ). 40-50K I'll leave to other revolvers that handle cartridges like the .454 which was 'designed' for the high pressures.
I routinely load .44 Spl over book max, but I'm using sane loads (the "Skeeter" load) in modern, strong guns.
I too shoot the Skeeter load pretty much exclusively in my .44Specials (except the little Bulldog). I don't consider it 'over max' as it has been in the older manuals as a standard load, and used by many many many others from the 1950s going forward without a problem. Now the Keith load is pushing MAX a bit, but I occasionally will load this up for my medium frame BHs.