RUAG is a new player to the ammunition game. Well, relatively speaking at least. Founded in 1998, the company has positioned itself as a high-quality ammunition manufacturer and a direct competitor to the likes of Hornady in the United States and Lapua over in Finland. That high quality positioning comes with a high quality price, but my only question is whether their ammunition matches up with their claims. To that end, RUAG sent us some of their 300 Winchester Magnum rounds to test and figure that out for ourselves . . .
Ammunition testing is a tricky business. Shooting groups and measuring the difference between the spread of the various calibers might seem like the most intuitive way to go, but there are way too many variables to produce a relevant result. In my opinion, the most accurate measurement of the relative consistency of ammunition is the interquartile range (IQR) of the observed velocity from a number of rounds from a single box of ammunition. The IQR of the velocities will give you an idea of how consistent the ammunition will group vertically, and the rest is up to the specific gun.
In this case, SIG SAUER was nice enough to provide one of their rifles for the testing. We shot a number of rounds through a chronograph, recorded the results, and ran them through my favorite statistical program (R). Here’s the summary of the raw results:
That puts the IQR for this caliber from RUAG at 13. In other words, 50% of the rounds flew within 13 feet per second of each other. To give you an idea of how that stacks up, we can look at the last set of tests we ran. The very best .308 ammunition I ever tested came in at 14. The very best 5.56 ammunition was 9. As far as I’m concerned, RUAG’s ammunition looks like it’s in the sweet spot in terms of accuracy. Nevertheless, I will always keep complaining until that range shrinks to zero.
What’s really remarkable is the extreme spread. The lowest and highest observations were only 32 feet per second different — Wilson Combat’s hand-loaded ammunition didn’t even reach that level of consistency.
The problem is that this is the first 300 Win Mag ammo we’ve tested, so we aren’t necessarily comparing apples to apples here. However, using my experience looking at the data and the previous results I can definitely say that this is some good stuff. To get a better idea of how RUAG stacks up I’ve asked for some of their .308 and 5.56 ammo, so stay tuned for an update. But in the meantime, this is definitely among the most consistent ammunition I have ever tested.