I've hunted with a '62 for the last few years and the rifle/cartridge has become my favorite - replacing my .35 Whelen.
My rifle holds 4+1, weighs a shade over 8 lbs(scoped) and handles like a wand with it's 21" barrel. Recoil is like a maidens caress.
I've tried quite a few different powder/bullet combinations and have pretty much settled on max loads of RL15 or Varget with Prvi Partizan, Hornady or Nosler Partition bullets. With either of these powders velocity is around 2375 fps but the Varget gives me better(marginally) accuracy.
I use the same powders with the Speer 270 gr bullet for around 2425 fps. The best group I ever shot was a 0.72" group at 200 meters using the Speer and Varget.
I tried H414 with the Speer bullet. I started with 60 grain(starting load from the Hodgdon site but a max load from Speer #12 - go figure) and worked up to a max of 63 grains(Hodgdon lists this as max for a 286 gr bullet). Top velocity was 2476 fps(24" barrel before I had the barrel cut). This velocity matched or exceeded the velocities from RL15 but accuracy sucked.
With 286 gr Prvi Partizan bullets and a max load of 67 gr of H4350, I was getting 2400 fps out of a 21" barrel. Getting 67 gr of H4350 and a bullet into the case took special skills
When i talk about max loads, I mean loads that I've worked up to in my rifle. Fired primers are round and I never have a sticky bolt. I've put over 400 rounds through the rifle using the same 50 Norma brass(actually, 46 brass. Some got lost during the killing

). The brass I have left is still going strong. Partial resizing is my friend.
The bottom line is that there can be a lot of versatility when loading for the 9.3X62 so don't throw out the H414.