7x64 load data

shbangsteve

Well-Known Member
Just bought a Sauer 202 in 7x64. I have got a pot H4895 and can get Alliant (Reloader 19, 22 etc) but that is all. Can't get any 4350 which seems to be popular. Looking for a fast flat and accurate load doing 3000+fps anyone got any load data for 120gr and 140gr Nosler, Hornady 120 v-max,139gr interbond ? All I can seem to find is reduced load Remington 280. Can I use the same data for a Nosler 120gr and a Hornady 120gr ? I know you can start low and work up but I am lazy and tight. I've used the same load in my 243 for 15 years.
 

Sako3006

Well-Known Member
SPEER manual 13 clearly states that the 280 Remington loads are the same as 7x64mm using R19 57-61(comp) cci 200 primer 120grn bullet gives you speeds from 2975fps-3222fps. 130grn bullet R19 powder 55grn-59grn 200CCI primer gives you speeds of 2835fps-3134fps and 145grn bullet with CCI 200 primer R19 powder 55grn-57grn gives you 2752-2973fps hope that is of help.
Just to say I have a BRAND NEW never even been out of their box, set of 7x64 Lee dies for sale if they are of interest.
 

Sinistral

Well-Known Member
SPEER manual 13 clearly states that the 280 Remington loads are the same as 7x64mm using R19 57-61(comp) cci 200 primer 120grn bullet gives you speeds from 2975fps-3222fps. 130grn bullet R19 powder 55grn-59grn 200CCI primer gives you speeds of 2835fps-3134fps and 145grn bullet with CCI 200 primer R19 powder 55grn-57grn gives you 2752-2973fps hope that is of help.
Just to say I have a BRAND NEW never even been out of their box, set of 7x64 Lee dies for sale if they are of interest.

It doesn't say that. You've drawn the wrong conclusion from the preamble for the .280 which says that the 7x64 and wildcat 7mm-06 is nearly identical to it.

Speer has never listed data for the 7x64, and Steve already knows that .280 Rem data can't be used for the 7x64 because of the smaller case volume. The best data source for this cartridge is Ken Waters 'Pet Loads' which quotes U.S. powders.
 

shbangsteve

Well-Known Member
Just to say I have a BRAND NEW never even been out of their box, set of 7x64 Lee dies for sale if they are of interest.
Wish I'd known waited a month for mine !
re 7x64 v 280 rem the info varies depending on who you speak to. Some say you can use the same data others not. The only people who give data for both are Norma. Up to 160gr bullets the 280 seems to have about 1.5 grains more, then with 170gr the 7x64 has more. Maybe something to do with the neck or just the way they were tested. I don't think Norma powders are available in the UK anyway. Anyone know what the Norma equivalents are in Alliant powders ? Or what Alliant powder equates to IMR 4350 and 4831 ? The sheet that came with the Lee dies shows reduced 280 Remington loads I will have to try those and work up if no one has any info.
 

Muir

Well-Known Member
Wish I'd known waited a month for mine !
re 7x64 v 280 rem the info varies depending on who you speak to. Some say you can use the same data others not. The only people who give data for both are Norma. Up to 160gr bullets the 280 seems to have about 1.5 grains more, then with 170gr the 7x64 has more. Maybe something to do with the neck or just the way they were tested. I don't think Norma powders are available in the UK anyway. Anyone know what the Norma equivalents are in Alliant powders ? Or what Alliant powder equates to IMR 4350 and 4831 ? The sheet that came with the Lee dies shows reduced 280 Remington loads I will have to try those and work up if no one has any info.

That's a good place to start, actually. Starting 280 charges, at least.~Muir
 

Muir

Well-Known Member
Just wondered if anyone with a 7x64 has loaded it with 280 Rem data ?

The 7x64 has a slightly smaller total case capacity than the 280 so you shouldn't just load it straight across the board with 280 data. Start with minimum 280 loads and you will be on the right path. ~Muir
 

shbangsteve

Well-Known Member
The 7x64 has a slightly smaller total case capacity than the 280 so you shouldn't just load it straight across the board with 280 data. Start with minimum 280 loads and you will be on the right path. ~Muir
just wondered if you have measured the difference in case capacity between the two. Some people say there is no meaningful difference and that older manuals quote the the same data can be used in 7x64,7mm06 and 280 Remington. Would give me so many more options if I could. Thanks Steve
 

Muir

Well-Known Member
just wondered if you have measured the difference in case capacity between the two. Some people say there is no meaningful difference and that older manuals quote the the same data can be used in 7x64,7mm06 and 280 Remington. Would give me so many more options if I could. Thanks Steve

I looked it up for you. According to "Handloaders Manual of Cartridge Conversions" by Donnelly, the 280 is 68.58 cc water case capacity and the 7x64 is 66.22 CC's.

A 2.36CC difference. So, starting with minimum 280 loads would be safe, probably, but 5% under minimum* would be safer.~Muir

*Please. No hand wringing about the dangers of starting below minimum.
 

shbangsteve

Well-Known Member
thanks Muir
I presume that's grains of water though not cc. The figures I had were 68-69 for the 7x64. I will try to measure one of mine out of curiosity. I will start with reduced 280 loads and work up.
 
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Sinistral

Well-Known Member
thanks Muir
I presume that's grains of water though not cc. The figures I had were 68-69 for the 7x64. I will try to measure one of mine out of curiosity. I will start with reduced 280 loads and work up.

I don't know what authority you're quoting, but there is a meaningful difference inconvenient as that is.

You can't easily reform .270 cases (which are larger) to 7x64, nor can you even chamber reformed .280 cases (which are larger than .270).... according to the K.Waters treatise.

If you need the figures in grains (avoirdupois) RWS 7 x 64 cases filled to the base of the neck are 60.3 grains whereas Remington .280 Rem. are 62.5 grains. That's a more useful measure for handloading than absolute case capacity.

The difference in powder capacity in grains will be even higher depending on the bulk density of the powder you're thinking of using.... so as a rule of thumb I'd say you're looking at 2 - 4 grains less throughout the range of .280 guide loads.
 

Muir

Well-Known Member
thanks Muir
I presume that's grains of water though not cc. The figures I had were 68-69 for the 7x64. I will try to measure one of mine out of curiosity. I will start with reduced 280 loads and work up.

Gad. You're correct. I had the Lee book on one side and the Donnely book on the other. The Lee is in CC's and I transposed it. My mistake. It is grains of water.~Muir
 

Southern

Well-Known Member
I have some good loads and factory ammo which works in my full stock Mauser carbine.

I am almost finished building a 7x64 with 600mm barrel on an older Ruger tang safety action.

And just picked up a new Steyr Pro Hunter 7x64mm with iron sights about 2 weeks ago.

I also own and load for a .280 Remington Sigarms SHR 970 ( Sauer ).

What is the rate of twist of your barrel?
My Mauser is 1:8.66, the Steyr is 1:8.6, and the SHR 970 is 1:10.

What bullets and brass do you have on hand or can get?
I also load for a 7x57R and 7mm-08, so I have 120, 130, 139, 140, 145, 150, 154, 160, 162 and 175 gr on hand, and all kinds of brass.

Can you get RL-19, RL-22, IMR-7828, N-160, or any 4831?

If you want 3,000 fps, that means the 139, 140, 145 grain bullets.
What kind of game and ranges do you typically shoot them?

I ask because the 154-gr Hornady and 160-gr Sierra GKs ( SPBT and HPBT) are working well for me.
 

jb7x57

Well-Known Member
Here is the load data that you have requested.
Caliber: 7mmx64 Brenneke.
Barrel length: 24”
Powder: Ramshot –- HUNTER.
Bullet weight: 140 grains Barnes TSX. COL: 3.300"
Start load: 52.2 grains (2625– 2725 ft/p/sec)
Maxi mum load: 59.8 grains (3050 – 3150 Ft/p/sec).
It’ important to note that SAFETY is our prime concern therefore we strongly recommend.
TO ALWAYS BEGIN LOADING AT THE RECOMMENDED

Don W.
CSR Western Powders
406-234-0422
This is the reply I got from ramshot
 

rarms

Well-Known Member
Massive thread resurrection but I wondered if in the past 5 years anyone had any good loads for the 7x64? I had a reasonable varget load, but with supplies of that now drying up I am thinking of starting a new load and maybe trying to develop a good one for my rifle this time rather than stopping when I get a reasonable one...

I have a large stock of Nosler Ballistic Tips in 140 grain so that would be my preferred bullet. Powder wise I am open to any advise/suggestions...
 

Laurie

Well-Known Member
. I don't think Norma powders are available in the UK anyway. Anyone know what the Norma equivalents are in Alliant powders ? Or what Alliant powder equates to IMR 4350 and 4831 ? The sheet that came with the Lee dies shows reduced 280 Remington loads I will have to try those and work up if no one has any info.

Most sources say 280 Rem max loads dropped by 5%.

Norma powders are again available here. 4350 equivalents are Norma N204 and the higher energy content and slightly faster burning Norma URP which is claimed to have been developed for America's hunting favourites including 270 and 30-06. The UK importer says this of it: N93219 NORMA URP A high-energy, mid-range propellant, URP is an excellent choice for medium-sized cartridges such as 7x64 and 30-06. Norma's manual has 7X64mm data for bullet weights from 120 to 175gn, N204 featuring in all of them, URP in most and MRP in 150gn and heavier. (MRP and Alliant Re22 are either the same powder or if not they are so close that MRP loads data can be used for Re22 with a slight reduction to be on the safe side. Both are made in the same Swedish factory by Eurenco Bofors.)

Recently introduced Alliant Re16 (and now just available here) is often described by US commentators as the best alternative to H4350 available on their market. Long established Re19 is in the same burning rate / suitable applications brackets as IMR-4831.

If you can find anyone stocking Reload Swiss powders, RS62 is a fine choice for 7X64 and there is a good selection of 7X64 data on the importer's website:

Reload Swiss | Reload Swiss Load Data
 

levigsp

Well-Known Member
It doesn't say that. You've drawn the wrong conclusion from the preamble for the .280 which says that the 7x64 and wildcat 7mm-06 is nearly identical to it.

Speer has never listed data for the 7x64, and Steve already knows that .280 Rem data can't be used for the 7x64 because of the smaller case volume. The best data source for this cartridge is Ken Waters 'Pet Loads' which quotes U.S. powders.
Have you measured the case capacity or you going off the repeated.!
 

levigsp

Well-Known Member
Wish I'd known waited a month for mine !
re 7x64 v 280 rem the info varies depending on who you speak to. Some say you can use the same data others not. The only people who give data for both are Norma. Up to 160gr bullets the 280 seems to have about 1.5 grains more, then with 170gr the 7x64 has more. Maybe something to do with the neck or just the way they were tested. I don't think Norma powders are available in the UK anyway. Anyone know what the Norma equivalents are in Alliant powders ? Or what Alliant powder equates to IMR 4350 and 4831 ? The sheet that came with the Lee dies shows reduced 280 Remington loads I will have to try those and work up if no one has any info.
Norma powders are available.
 

Southern

Well-Known Member
A confusing thing about trying to compare 7xt64mm to .280 Remington is that some brass of 7x64 has greater capacity than the .280, while with other brands, the .280 may have greater capacity.

Secondly, the .280 Remington was originally loaded for their Model 760 pump action and Model 742 autoloader, so it was to lower pressure than the 7x64 or the .270 Winchester.
Modern manuals give loads to different pressures, for matching some of the milder factory loads, and some for modern bolt actions, loaded to 60,000+ PSI.

For comparison with the Ramshot 7x64mm data above for the 140-gr Barnes TSX, here is Barnes data for the .280 Remington:

Ramshot data for 7x64 ( above )
Bullet weight: 140 grains Barnes TSX. COL: 3.300"
Start load: 52.2 grains (2625– 2725 ft/p/sec)
Maxi mum load: 59.8 grains (3050 – 3150 Ft/p/sec).

Barnes manual for .280 Remington 140-gr TSX or TTSX, Federal 210GM primer, 3.250" COAL
Powder (grains)(fps)(grains)(fps) Density (%)
IMR 4350 49.5 2730 52.5 2876 91%
H4350 47.0 2702 52.0 2919 87%
Hunter 51.5 2751 56.5 2984 89%

So, starting at 52.5 grains for either cartridge seems plenty safe. Then, just use a chronograph as you approach 56.0 grains.
 
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