wild bill g

I bought a 257 Wby because it was one of the flattest shooters out there. After reading the velocity claims of the 6.5-300wby I should have waited. They claim a 127Barnes LRX at 3600fps With a BC of .470 that will be a flat shooter. Plus you will have the added knock down power at long range.
So has anybody got one or given this cartrage any thought It was used back in the 70's for 1000yd shooting but then died out.

salukipv1

What were your intentions for the 257wby? deer? elk? everything?

both are quality rounds I think.

not sure most need either or will use them to their potential hunting in most circumstances.

It's funny how after you buy a car etc... a gun, you see it on sale a week later... haha, but oh well that's life, not really a big deal,

I think if you need more gun than the .257wby, I'd look toward something like the 300wby or 340wby which IMO may be the best wby round. 225@3100fps TSX.

not sure it's much but based on the 300wby case is the 6.5, so I assume the kick is increased.

Ridge Runner

It died out for a reason. 500 rounds ain't much barrel life
RR

wild bill g

I have a 300wby and it has ruined me I love that case design. Not sure how long it would take the average joe to fire 500 rounds but I am guessing awhile. This would not be a rifle for a one gun hunter. The potential as a long range firearm though is out of this world that is what I like about it.

salukipv1

The 6.5-300wby is essentially a full length .264 win. mag.

speaking of, I'm not sure what action lengths weatherby uses on their 257wby rifles, if it can handle the 6.5-300, if not, a re-barrel in .264 win mag would work.

You might want to check out the 26 Nosler, 28 Nosler, 30 Nosler...

Kind of wish they could make the 6.5 WSM work... I hear good things from the 7mm WSM as well, but it appears the 270wsm and 300wsm are the 2 that are here to stay...

TN Lone Wolf

I've considered the round for when I get my granddad's burned-out Mark V rebarreled. It probably wouldn't take long to burn out the barrel on it, but it's not like I'd sit there and shot a hundred rounds every weekend. It would be an excellent round for what it's designed for: hunting medium and big game at long range.

jeepkid

I believe the new 6.5 Wby is based on the 270/257 Wby casing, not the .300 Wby so it's essentially a .264 Win Mag with a double radius shoulder.

The 6.5-.300 Wby is a wildcat that is close to the 26 Nosler just with the double radius shoulder.

The 257 Wby and the 6.5-300 are both at the top of the "efficiency" scale and require 26"+ barrels, but both are pretty awesome rounds.

We have a line based off the .300 Win Mag and I think I'm going to build a .257 Diablo next year for antelope/deer.

wild bill g

The reason I like the Weatherby's is the the double radius shoulder. That design really improves case life over other belted mags. Yes the 6.5-300 is overbore but the velocity gain over the .264 Win. Mag. is about 300 to 400fps. There doesn't appear to be any loading data yet to let us know how much powder is being burnt. However everyone would grab it if it were a 270 cal and a 130 grain bullet at that velocity. Which really this is very close to with a betterB.C. bullet.

TN Lone Wolf

No, the 6.5-300 Weatheby uses the full length 300 Weatherby case, not the standard length 7mm/270/257 case.

jeepkid

Correct, I was thinking of McWhorter's 6.5 Wby.