I've been looking at reload data and it says 225gr bullet and H4831 powder the 338 max load is 73.5gr at 2805 fps, 340 max load is 86gr at 2889 fps. So 12.5grs more powder to get 84 fps. 250gr bullets and H4350 powder 8.5grs more powder gets 70 fps. Is there anything the Weatherby can do that the 338win won't besides be more expensive in every way?
340 Weatherby vs 338Win mag
- Thread starter skhunter
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The manuals never do the 340 justice! The 340 is one of the best long range calibers for really big game.I've had more 338 win;'s then I can remember and a few 340's.Both are great calibers, for most folks the 338 win is the best choice as it will reach out with authority,but the 340 will do over 3000fps with a 225gr and in my experience the 338 will do around 2850.The 340 will add 150-200fps with most bullets,you would have to decide if it's worth the extra powder and brass cost .
I shoot both. The Wby pushes pretty much any bullet weight 200 fps faster then the Win Mag. Up to you whether or not that's important. - dan
To some it is , others don't think it is, the difference is similar to the difference between the 30/06 and 300 win mag, or 308 and 30/06. Given a choice I'd take the 340 but that's me.Generally being a gunnut isn't about moderation, it it was we wouldn't have 300 mags,7mags etc...
Great to have choices like this to make !
Great to have choices like this to make !
Though not my cup of tea, from a reloading and power standpoint I'd take the .340 Weath.......some loading manuals give short shift to the Weatherby's (like speer) others like Hornady push 'em hard, it's a competition thing, Hornady prop up Weatherby because Wea. uses Hornady bullets in some factory loads.
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More recoil for the 340 wby.JITC
I can handle about 30 rounds out of my 338 WM at a time. The rifle is light, weighing 8lbs all up, but I have 210gr TSX's and 72gr of H4350 making 3000fps, so they kick.
I fired a 10lb .340 Roy with 250gr Partitions (factory) once. The recoil wasn't harder than my .338, but it was wicked fast. After three rounds the noise was very apparent also.
In my reality (I said my for a reason) I don't foresee myself needing more range than the .338 will provide me. I would likely move up in calibre before I'd put more powder behind a .338 bullet if I want more downrange punch. Like a Cheytac or something...
I fired a 10lb .340 Roy with 250gr Partitions (factory) once. The recoil wasn't harder than my .338, but it was wicked fast. After three rounds the noise was very apparent also.
In my reality (I said my for a reason) I don't foresee myself needing more range than the .338 will provide me. I would likely move up in calibre before I'd put more powder behind a .338 bullet if I want more downrange punch. Like a Cheytac or something...
My 340 is a 7 pound gun. Makes your heart pound after a few rounds. - dan
I have a 338 WM that I've been debating changing to 340 (or even 338-378). It's a P14 action, nice and heavy, with a big, comfortable stock. I can shoot it all day without any ill effects which I'm sure is due to its 10 lb weight and very wide footprint on my shoulder.
the 340 is just ###ier than the 338. Not really all that much more powerful - the difference is probably negligible - but still ###ier
the 340 is just ###ier than the 338. Not really all that much more powerful - the difference is probably negligible - but still ###ier
Hey now! We prefer vertically challenged, lol. - dan
I hunted with the 340 pretty much exclusively from 1983 until the 338 Ultra came out....I think I switched in 2001 ?
I like the 340!
It pushes 250's faster than the 338 Win. can push 225's and that by itself is probably its biggest advantage.
Nothing earth shattering but it is an advantage.
Recoil is in the deep end for most shooters, but if a guy shoots a 338 well he can shoot a 340 too.
It's a matter of personal priorities but my take is that if you want a faster 33 than the 338 Win. the 338 Ultra is a more logical step up.
I like the 340!
It pushes 250's faster than the 338 Win. can push 225's and that by itself is probably its biggest advantage.
Nothing earth shattering but it is an advantage.
Recoil is in the deep end for most shooters, but if a guy shoots a 338 well he can shoot a 340 too.
It's a matter of personal priorities but my take is that if you want a faster 33 than the 338 Win. the 338 Ultra is a more logical step up.
From a practical perspective, I tend to agree. I also have a 338 Lapua, and the 338 RUM will do anything the Lapua will ballistically. Of course, you don't get the "cool, I'm a sniper" thing going, so perhaps that's it. - dan
Yes, the TRG-S (also known as the 995) 26" bbl. - dan
