Hey guys, I picked up a pound of Superformance today to try in the 260. There seems to be no published load data for it yet, so I thought I would ask if anyone has called the Tech Service line at Hodgdon to get any data yet. I know it is not the same as the factory ammo but that is fine as I do not shoot factory ammo, and I do not even know if they load the 260 at the factory. My current powders for the 260 have been H4350 and H4831SC, I have Reloader 17 but haven't tried it yet.
Any Superformance loads for the 260?
- Thread starter Crashman
- Start date
I have talked to the tech's at Hodgdon and I was told that when they released this powder to the canister trade that unless it produced over 100 fps faster than regular powders already on the market. They would not release data for that calibre. Doesn't mean it would not work in some applications, just that it didn't give their 100 fps prerequisite
They have it in the table for burning rates, it is between H4831 and Win 780
http://www.hodgdon.com/burn-rate.html
There are published loads for both H4831 and 780 for the 260, so you should be able to start with something in between these two.
http://www.hodgdon.com/burn-rate.html
There are published loads for both H4831 and 780 for the 260, so you should be able to start with something in between these two.
I have shot it in the 7X57 and found it to be faster than H4831 (contrary to some burn rate tables), and slower than Reloder 17. It seemed to match most closely with H4350. I'd load up five with a H4350 starting load and five with Superformance with the same starting load and compare. If the Superformance MV's are faster, then it's a bit faster than H4350 in that application, if slower, it's a bit slower.
Interesting. So lets say its faster than H4350, do I load to similar max velocities for H4350 in published data? Or do I load to approx same max charge weight? I have been reloading for some time now, but I consider myself a complete newbie to this. Thanks for the help!
It depends on how much faster it is than H4350 in the 260 Rem. If it comes in less than 50 fps faster for the same load, then you'd be ok loading it to the same MV as you get with a max load of H4350. I expect it to be a bit slower though, and the same would apply, or you could go a bit higher.
nowarningshot
CGN Ultra frequent flyer
I emailed them about this for another caliber. My choice was a considerably larger caliber. The answer i got was that my caliber would not be covered as the powder capacity could make it unsafe. Certainly not the concern with 260, a case based on 308.
I would bet they will answer if you email them. Since 260 is a 308 based case, info on that caliber would be a logical starting point. Would wait for their response though.
I would bet they will answer if you email them. Since 260 is a 308 based case, info on that caliber would be a logical starting point. Would wait for their response though.
Powder manufacturers will never provide a load that they haven't tested and included in their published load books.
If a load is not published, it's not because that powder is unsafe in that cartridge, it's because:
- they have not yet, or choose to not test it. Testing is time-comsuming and expensive;
- the powder is not optimum for that cartridge and will thus appear to be a poor choice; or
- the powder is too slow to operate properly. Imagine H4350 in the 9mm Luger. Bullseye in the 50 BMG can work, but not that.
All to say, sometimes you have to work up your own loads, or move on to somwthing else.
If a load is not published, it's not because that powder is unsafe in that cartridge, it's because:
- they have not yet, or choose to not test it. Testing is time-comsuming and expensive;
- the powder is not optimum for that cartridge and will thus appear to be a poor choice; or
- the powder is too slow to operate properly. Imagine H4350 in the 9mm Luger. Bullseye in the 50 BMG can work, but not that.
All to say, sometimes you have to work up your own loads, or move on to somwthing else.
