Bought a few pounds to try.... loading data is somewhat limited. Anyone running this in a 22-250,243,6mm creedmoor, 260 rem, 6.5 creedmoor, 708, 308??

I had great luck with it in tikka short mag rifles. I believe barnes still list it as most accurate powder for a creedmoor and 260 load. I know one reloader using the gmx and superformance in a 260 with great accuracy

The accuracy I've gotten with it leaves me totally unimpressed.

30-06 with 150 grain will exceed 3000 FPS and is accurate in my rifle.

Getting 3400 fps with .5-.6 inch groups with 70-grain GMX in a 1-8 twist .22-250. Tried several other powders listed as getting top velocities and none came very close.

Muledeer... if you ever catch one of those GMX be sure to post it. If I remember right somebody tested a 22 caliber years ago on some cow bones and Flesh and it did amazingly amazingly well... as in pretty impressive frontal diameter and really deep penetration.

Specs look really good for 30-30 with 160 FTX's

Not right for 3030.... you want leverevolution powder for that!

I will relate a conversation I had online with a noobie
Because Hornady markets Superformance ammo his logic was that Hornady loaded all of its Superformance ammo with the one Hodgdon Superformance canister powder.

Since he did not find any data for his .444 he proceeded without any data.
He owned a chronograph but he did not understand why he only got 1400 fps.
He wanted better data to match the high velocity of the Hornady ammo.
I investigated and found that Hodgdon supplies 14 non-canister powders to Hornady to load Superformance ammo.
Some people's logic is amazing.

I as well contacted a Hodgdons tech named Mike and he told me there are over 40 blends of Superformance, but only one for us reloaders.

I get over 3600 with 70 grain bergers in a 22-250 improved. Accuracy is very good. Tested many other powders and none came remotely close.

30" bbl Browning 1885 25-06, 4000 fps w/80 Barnes.

Absolutely nothin'!!!!!!!!!!!!!!! UHN-say it again!

I run it in my 6 AI, works good.

Works good in my 270 Winchester with 140gr Accubonds.

Do you know which of the 40 is being sold to reloaders? I've read here that each blend is cartridge and load specific.

I heard it was the blend for 30/06. Heard it on the web so must be true.

My chrono says the 3006 data is fibbing...lol.... but it says that about a lot of things!
I thought I had a pretty accurate load (not near claimed velocity) but i would get unexplained Flyers.... it's also pretty dirty in the 30 odd 6 leaving a lot of soot around the neck.... and a pretty black Barrel clean up.

Yes you are correct , I got confused 🤕 leverevolution is was I was thinking of .

Haven't chrono'ed it yet (battery was dead) but 71.2g got me sub 0.5" groups in my .300 WSM.

The Superformance powder actually used in a few but not all Superformance cartridges. Which I believe you have addressed. Its been my experience of the few box of Hornady that I've shot, those loads have been pretty hot but still within spec. I haven't gotten great accuracy from those boxes but then again my base line are my reloads which is a little unfair to the box of ammo that is expected to work in all chambers. Finally, performance listed on the side of a box of ammo is rarely what going to be achievable not just in with reloads but from the factory ammo as well. It would be best to concentrate on speed through a chronograph as it relates to charges. For example, I am looking at RL16 to push 165 grain Nosler Accubond. The listed max is around 57.3 grains of powder. I will reduce my load my 10% and work up to that point. If the chronograph shows too much speed, I will back off and stop there. Looking back at all the data, I will pick my most accurate load and that will be the speed for that rifle for that load. Here is the kicker, a year from now I'll purchase another pound of RL16 and load it the exact same way. There is a good change the chronograph may not have the same ES or SD. Why? Because now I'm dealing with a different lot of powder, primers, bullets, and brass (very good possibly a different manufacture). Bottom line I don't chase velocity, I strictly use it as a safety parameter. I chance accuracy.

Used 57gr of RL16 and got 2987fps out of a Weatherby Mark 5 30/06. Used R/P cases and CCI250 primers.
3.260OAL. 24" barrel. 7 shot average.