.338 Winchester Magnum or .338-06 Improved.

Which .338 cartridge would you build?


  • Total voters
    54
I've owned 2 different 338 Win Mags but both eventually went down the road. I'm now planning on building a 338/06 but might do the 338/06 improved instead. In spite of that, I'd answer the question by saying the 338 Win Mag is the way to go because of factory ammo being available on retail shelves!
Your right you have a chance to find it on the shelves but at least out where I live (Montana) it's getting tougher and tougher to find it in a store...
 
Your right you have a chance to find it on the shelves but at least out where I live (Montana) it's getting tougher and tougher to find it in a store...
Yea -- I live in Oregon but I've traveled a lot in my job and love Montana -- my favorite state! Especially the many smaller towns in your state! I reload for every caliber I shoot, so not finding 338 Win Mag on retail shelves doesn't apply to me -- except -- if I were to fly somewhere and my ammo got lost due to our trusted airlines (no -- I don't trust them)! Assuming my rifle didn't end up in Timbuktu like my ammo, I'd hope I could find some factory ammo at my hunting destination! If not, I'd resign myself to taking lots of pictures of game animals and be happy with that!
 
Apply your personal reasons to the 308 vs 30-06 discussion. If you like 250s, go
Win mag. If you like 210s, go 338/06.
I use 250s in my 338 win for elk. I quit using it on sheep, deer and pronghorn years ago when I shot 210 and 225 partitions. Lots of extra tissue damage.

The Whelen is my response to that level of power because .358 bullets work better than .338 on tissue, and my 35 Whelen kicks a lot less than my 338 win.
But you cant shoot .338 bullets in a .358 bore.
 
So, if my 338-06 shoots a 210 gr TTSX at 2,800 FPS and the 338 RPM shoots a 225 gr TTSX at 2,800, is there an animal out there that will know the difference?

FYI, Weatherby is the only one that chambered the 338-06, but only for a year.
 
So, if my 338-06 shoots a 210 gr TTSX at 2,800 FPS and the 338 RPM shoots a 225 gr TTSX at 2,800, is there an animal out there that will know the difference?

FYI, Weatherby is the only one that chambered the 338-06, but only for a year.
No, but theyre not going to know with a 338 fed and a 210 at ~2600 either.

Maybe you want more sd than a 200-210 has. Maybe you want more BC. Maybe you want that 210 over 3000fps.

If you're having a barrel made anyways and you handload which seem to both be true here, 338 rpm brass has Peterson and weatherby. 338-06 has weatherby. And you dont have to fireform for AI while being faster than the AI.

Also fits standard bolt faces, standard -06 magazines and you get 3+1 like an -06 rather than 2+1 like a WM.
 
338-06AI...that is why I am trying to find head=stamped 338-06 brass.
I've been able to find some produced by Wby, I think there is a boutique ammo producer or two who makes it as well.

Honestly, it's not needed unless traveling out of the Lower 48, even then it's not mandatory
 
Back
Top