Hornady 6.5 mm 160 gr. Round nose..

Cranhill

Well-Known Member
Hello
I don't twist rate but I do know it's same twist needed for 6.5 x 54. We found out by trial / error using 1910 6.5 x 54 rifle.
 

deeangeo

Well-Known Member
I'd have thought pushing these bullets at 2800fps is a tall order, but you don't say what rifle & cartridge. But to stabilise them does require a twist of 1-8.
I never tried one in my 6.5x55SE Steyr.

1-8 is the MSch M1903 6.5x54 rifles I have, in these however the 160gn bullet doesn't reach the MV of 2800fps.
The MV is more like 2450fps. Not long ago I had my M1903 MSch Takedown re-barrelled in 6.5x54MSch & it shoots 160gn bullets well using both IMR4350 & 4831.
You do need a fairly long throat in your rifle though.
 

Sinistral

Well-Known Member
I'm certain he is talking a larger cartridge like the 264 Win Mag.~Muir
Neither twist nor throating will be a problem with the Hornady 160gr RN [#2640].

At 32mm it's the same length as the Hornady 140gr SP,and shorter than the Sierra 140gr BTSP. What's different about it is that the 22mm ahead of the cannelure is .257" so it doesn't contact the rifling & 'rides' the bore. The other 160gr RN bullets from RWS, Kynoch, and the Sierra SMP are .263"-.264" parallel section, so can't be loaded up like the Hornady.

This is fine in my 1:9" Tikka 6.5x55 at 2500 fps* so a slower twist will work at 2800. If GOW is talking about the .264 WM, the Winchester M70 and Rem M700 had a 1:8" twist anyway.

The Hornady 3rd Edition has loads for this calibre from it's heyday, pushing the the 160gr up to 2900 fPs from a 24" Win M70. The remarks say they burnt out several barrels compiling all the load data. Many copies of this on EBay btw, GOW ;). . .

 

Muir

Well-Known Member
Neither twist nor throating will be a problem with the Hornady 160gr RN [#2640].

At 32mm it's the same length as the Hornady 140gr SP,and shorter than the Sierra 140gr BTSP. What's different about it is that the 22mm ahead of the cannelure is .257" so it doesn't contact the rifling & 'rides' the bore. The other 160gr RN bullets from RWS, Kynoch, and the Sierra SMP are .263"-.264" parallel section, so can't be loaded up like the Hornady.

This is fine in my 1:9" Tikka 6.5x55 at 2500 fps* so a slower twist will work at 2800. If GOW is talking about the .264 WM, the Winchester M70 and Rem M700 had a 1:8" twist anyway.

The Hornady 3rd Edition has loads for this calibre from it's heyday, pushing the the 160gr up to 2900 fPs from a 24" Win M70. The remarks say they burnt out several barrels compiling all the load data. Many copies of this on EBay btw, GOW ;). . .

I've shot a couple thousand of these bullets in various 6,5s. I've always kept a few hundred around for my 6,5x55s.~Muir
 

Jelen

Well-Known Member
I'm certain he is talking a larger cartridge like the 264 Win Mag.~Muir
I reckon you're right. He'd be pretty pushed to get 2800fps out of a 6.5prc even, unless he has a 26" barrel.
I loved them and the terminal performance on Sika was excellent.
 

Laurie

Well-Known Member
At 32mm it's the same length as the Hornady 140gr SP,and shorter than the Sierra 140gr BTSP.

If exactly 32mm (as opposed to an approximate value) that's 1.26-inches. Miller says it has an Sg value of 1.60 at 2,800 fps in a 10" twist; 1.52 Sg down at 2,400 fps - both in 'standard conditions' (59F and 29.92 inches mercury pressure). 1.50 and higher is fully stabilised, and lower values will still work.

However, Miller and all the other apps etc based on it, are designed for boat-tailed bullets that require more stabilisation than FBs. As the 160gn Hornady is a flat-based RN design, it'll work fine with still slower twists - as a guide value, an extra inch twist over an equivalent length BT design, or 1 turn in 11" in this case.
 

A Guy Out West

Well-Known Member
I'd have thought pushing these bullets at 2800fps is a tall order, but you don't say what rifle & cartridge. But to stabilise them does require a twist of 1-8.
I never tried one in my 6.5x55SE Steyr.

1-8 is the MSch M1903 6.5x54 rifles I have, in these however the 160gn bullet doesn't reach the MV of 2800fps.
The MV is more like 2450fps. Not long ago I had my M1903 MSch Takedown re-barrelled in 6.5x54MSch & it shoots 160gn bullets well using both IMR4350 & 4831.
You do need a fairly long throat in your rifle though.
.264 Win
 

A Guy Out West

Well-Known Member
Neither twist nor throating will be a problem with the Hornady 160gr RN [#2640].

At 32mm it's the same length as the Hornady 140gr SP,and shorter than the Sierra 140gr BTSP. What's different about it is that the 22mm ahead of the cannelure is .257" so it doesn't contact the rifling & 'rides' the bore. The other 160gr RN bullets from RWS, Kynoch, and the Sierra SMP are .263"-.264" parallel section, so can't be loaded up like the Hornady.

This is fine in my 1:9" Tikka 6.5x55 at 2500 fps* so a slower twist will work at 2800. If GOW is talking about the .264 WM, the Winchester M70 and Rem M700 had a 1:8" twist anyway.

The Hornady 3rd Edition has loads for this calibre from it's heyday, pushing the the 160gr up to 2900 fPs from a 24" Win M70. The remarks say they burnt out several barrels compiling all the load data. Many copies of this on EBay btw, GOW ;). . .

Mine is a new Model 70 Win. Pretty sure the twist is one in 9.
 

A Guy Out West

Well-Known Member
Thanks all for the input. I had feared that 1 in 8 was going to be the answer. Looks like my 1 in 9 twist will work. The 160 RN is about all I have seen on our shelves here. Should work just fine on elk in our timbered areas. My 14 year old is Jonesing for me to take him elk hunting this year. Now I have a good excuse to get some 160 grainers.
 
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