Dear Dakor,
for 300SMK you need at least 1800fps to open up shooting on flash.
If you go for shooting high shoulder you can use 1400-1600fps.
This is what I used ffor my 338edge with 300smk @ 2873fps.
Everybody have different experience with SMK, some good reviews other not so good reviews on hunting game with them.
Just keep in mind in all bullets used for hunting scenarious soon or later you will have one or two failure. Every game is different built, some will die on spot, other willl run for 50yrs, and some of them will not want to die.
I witnesses one black bear shot through hart, running uphill 100yrds before collapsing. There was nothing wrong with the bullet, bullet placement, or bullet opening up... just this bear haved to much adrenaline pumped up and to much living will. of course hi colapse when his brain run out of blood.
Far now I used just 300smk and never let me down.