Man some of y'all need a hobby... As long as it does what I need, I don't care what they tested it with.
They are probably chronographed from a SAAMI spec (pressure) test barrel.
Don't they usually do 18"-20" for .22lr. I could be off on that, I just have a faint recollection of seeing that, I'd have to check some of my .22lr boxes.....Yes ,but you can figure the test barrel was between 14" -18" .
The reloading manual gives an approximation.
Not going over pressure and having accurate, consistent groups matter more than actual velocity to me.
I have noticed, on center fire rifle cartridges, the velocity on the box, typically is higher than what is obtained in my rifles.
Well, then, they could say that, but they don't.
And looking at ballistics by the inch, sometimes the .22 will slow down in those longer barrels.Try the Ballistics by the Inch website- very interesting stuff!
http://www.ballisticsbytheinch.com/
The ammo manufacturers are probably being vague on purpose- Im sure their lawyers have final approval of everything on the box.
9mm too....And looking at ballistics by the inch, sometimes the .22 will slow down in those longer barrels.
Well, then, they could say that, but they don't.
The ammo shoots well out to fifty meters or so. Actually shoots about three to four inches at 100 yards, but I don't plan on attempting that much.
My gripe is I have nothing on which to base an expectation. Further casual investigation shows most all ammunition has a velocity shown, but no mention of the length of barrel. Nor am I expecting ammunition suppliers to test every conceivable arm so chambered and print that on the carton. But the addition of something like "... in a 24" barrel" would shed a ray of light for the user.
Or am I just too nit picky?
Not at the point of sale, it isn't. When you are looking at ammo, at the counter. Bear in mind you're looking at dozens of these different boxes, when you're out shopping ammo, and to be kind, some don't even give FPS specs.The information is out there, very easily found.
Ammo charts from manufacturers used to list the barrel length used to get velocity numbers, like “4” vented test barrel” for .38 Special loads for handguns or “ 24” test barrel” for .30-30 results (One reason why published numbers were often very optimistic!)
Ballistics by the inch is cool because they not only show the results from their test barrel as it’s cut down, but real world gun results that they chronograph, too.
Stay safe.
Not at the point of sale, it isn't. When you are looking at ammo, at the counter. Bear in mind you're looking at dozens of these different boxes, when you're out shopping ammo, and to be kind, some don't even give FPS specs.
I have to agree that it isn't an inelegantly large amount of information to add, to any box.