Alright, I'll hold you by the hand...
1) this is baseline bullet weight an velocity. It'll give u an idea of how far above factory loads you are venturin.
2)Its hard to imagine another few hundred fps turnin this cartridge into the latest short magnum.
3)You need to worry first about strength of your brass. Assumin your 336 is in exellent condition, it has a 100% safety margin at 40,000 psi, you can certainly cut into this margin, but its there to provide for catastrophic events-the higher you go-the less protection for you the shooter an any others around you.
4) The .35 Rem is one of those 100yrs. old cartridges that sticks around cuz it works as designed. The magic level for levergun rounds of medium bore is 1900-2100fps. More velocity does not translate into a deadlier cartridge.
Finally, keep in mind that after a point, more velocity is redundant at levergun ranges.
Good luck n good shootin
