My .375 FL Mag double with 26” barrels shooting 300 grain TSX clocks in at a little over 2400 FPS, one barrel is slightly faster than the other, but average speed between both is around 2425 FPS.

My .375 belted mag Sako Kodak 20 inch barrel shooting the same 300 grain TSX clocks in right around the same speed as the double rifle......

With either rifle, the game animals expire nicely and I’m sure can’t tell which rifle type did them in..... equal opportunity killers they are!

If you have a bolt rifle with a longer barrel, you’ll likely get 100 FPS faster velocity out of it, but it won’t make a whole lot of difference to the game.

The 9.3 x 74R I have is also an effective killer at an extremely similar 2450 FPS, but the bullets I’m shooting in it are lighter by 50 grains and obviously the bullets have a slightly smaller cross sectional size. Animals expire nicely with this cartridge too.

My feeling is that the .375 fl mag or the 375 H&H is definitely more of a good thing than the 9.3x74R. If recoil is any indicator, the 9.3x74R is certainly not as snappy as either .375.

For even the largest plains game, any one of the 375 or 9.3 x 74R will work very nicely! For DG the 375s are certainly legal, but just maybe one might want to step up to something a little larger, ie, .400+ caliber for the extra margin of safety.

So, .375 fl mag or 9.3x74R? Is ammo availability a concern? Does one hand load? Does one travel to remote locations where lost ammo is a show stopper? Will one need to meet minimum DG caliber restrictions?

And finally: What makes YOU happy?