Does anybody know the velocities in these two calibers for equal weight bullets? Im sorta playing with the idea of getting one someday and would like to know how they compare.

A quick check of Remington's and Weatherby's ballistics charts say the following about muzzle velocities:

Rem 375 UltraMag
270 grain @ 2900 fps
300 grain @ 2760 fps

Wby .378
270 grain @ 3180 fps
300 grain @ 2925 fps

Either should feel quite pleasant on the shoulder, I'd think.. :-)

Edited by - Mark in NE on 01/06/2002 21:19:05

Hmm, well if we go by that then the WBY is quite a bit faster than the Ultra. I found the ultra info on the remington site but couldnt find any factory listings for the wby.
Any handloaders out there with first hand experience with either of these two guns?

Personally I like the old standard 375 H&H.
The Ultra and Weatherby use a heck of a lot more powder and compared to the H&H knock the snot out of you for marginal gains IMHO. A hanloader could squeeze more perfomance out of the H&H if they so desired. Let's face it a 375 class round is not used for long distance work and most shot are inder 200 yards with these and most likely in the 75-150 range. I don't think an animal will know what hit them ,but if you're into S&M and spending long green on ammo by all means by an Ultra or Weatherby.

I'm with ruddyduck, the old .375 H&H is about as good as it gets. If it came down to a choice between the 375 ultra and the 378 weatherby I'd pick the ultra. It's the only practical cartridge between the two, the 378 weatherby is like a jet car at the dragstrip, lots of smoke and flames but not much use to anyone. Just my opinion.

I will throw in the 376 Steyr which is capable of taking any game animal on the planet. It almost equals the 375 H&H but with far less recoil.

http://www.steyrscout.org/376steyr.htm

I would go with a 378 Wby. Mag. Good luck.

Ok, I dont want to step on any toes here, but the .375 H&H is out. Way too much arc in the trajectory. I have a friend who had a 378 WBY lasermark. Ive shot it a few times and could stand the recoil in moderation. If however, recoil became a problem, muzzlebrakes are the solution. I dont really need this rifle, but hey, you have to have a wish list! It would mainly be used for the occasional elk hunt, with perhaps moose or bear thrown in at some time down the road.

i think the .375 h&h is better recoil wise.

i dont think range should be an issue,you shouldnt be taking long shots on game these guns are intended for

just my opinion but if you wanted to use it for elk then sure no such thing as a deader elk right?