Anyone ever shoot 300 gr bullets out of a 340 wby . any load Data around

I am also curious...

Not to be negative, but why bother? There are only two possible reasons to use the 300 gr bullet (other than having an existing supply to shoot up, or that your rifle just likes them) and those are increased bullet integrity and increased penetration. Since both of those issues are resolved with premium bullets, I don't see any current need for the 300 gr bullet. A Barnes X will out penetrate the old PowerPoints, and almost certainly the Woodleigh as well.

I don't know but my guess would be the higher BC for long range shooting.

You can probably check at longrangehunting. I don't know for sure about the 340, but a lot or folks there are using the 300 matchking out of several calibers.

Sierra match kings in 300 gr. I use these in a .338 Edge over 92 gr. of H1000. I believe this will also work in a Weatherby, check the loading manuals. The down side is that you need 1-10 twist or tighter. The optimum is 1-9.3. They are great for long range.....Tom

I did some long range testing work with Sierra 300 gr MK in my 338-06 and H4831...worked up to ~2350fs at ~54KCUP. About half the drop of a 250 Sierra GK even at that velocity. With a BC of .750 plus, the bullet is very stingy in loosing velocity.

Accuracy wasn't all that bad for a light tube hunter...stayed around 3/4" MOA or slightly less for 3 rounds...normal accuracy with 225 Hornady's is 5 rounds in a quarter size hole. I had fun with it with rock chucks, but moved out of Utah and gave up that big bullet.

My 338-06, Rem 700 receiver, has a long throat originally designed for a 270 gr bullet and I could seat to ~3.8" to get max case capacity. Had to single load.

The '06 case has about 30% less case capacity...you should be able to get 150-200 fs more with the 340 W.

You could use any 275 gr load data starting at the bottom end and work up. Hodgdons manuals has data.

Search the web. I've read some accounts of using the 340 W and other large capacity cases, Lapua and some 338 wildcats on very long range muley and elk...maybe on Long Range Shooting.

Now that Savage has come out with their 338 Lapua, I think another bit of hoohaa is about to happen. ...I need to win the lotto.

Luck

I bet fullhouse loads with a 300 grainer out of a 340 will get your attention. However, I may just have to give it a try. Are there any 300 grain hunting bullets, or are they just for target shooting?

Recoil level is similar to the 375 H&H with the same bullet weight, rifle weight being the same. It not all that bad if you learn how to handle it or have shot heavy recoiling rifles enought not to notice the recoil too much.

Hornady, Sierra and Lapua all have 300 gr bullets. I guessing you could find others with a web search. Corbin might have swaging dies, and most of the mould makers could design a nice hard caste lead bullet and any of the custom turned bullet makers could design one if they haven't already. Macifej just might have one one hand already.

The only real problem is bullet length...a 300 gr, 338 bullet is REAL LONG and you need a long receiver to handle it if you want to seat it out to get the most case capacity

Of course it you want just a close in hunting bullet you could bob off the nose to somewhere around 75% meplat, but then you would have to fiddle with the length to get the weight right.

I think for all the futzing around...the 300 gr Woodleigh would be the obvious choice for hunting and the Sierra or Hornady for long range target although I would probably max out around 250 gr for that caliber.

Remember...Kinetic Energy increases at the SQUARE of the velocity and only PROPORTIONALY to the mass, meaning you get more energy faster by increasing the velocity rather than going to a heavier bullet and loosing velocity in the process...normally.

Still the BC of the Sierra and Hornady is twice that of the lighter bullets which means you might have advantages once you pass a certain range.

But...YOU have to calculate all that stuff and decide. Hahahahahaha

Luck