I was looking at the wrong box :^)
Reloading Funs
From my research compressed loads aren’t inherently dangerous. Also, the COAL is 2.80, could be higher.
Guess it depends on at what coal it hits the rifling in the barrel for what the max COAL you would be able to use.
It's $150 if you are stupid
Ask someone for the files to pirate it
107% is not a serious case fill if the powder is slow enough.
Have you ever reloaded? I have shot ammo with powder coming up to the mouth and so long as it was intended to do that I was fine, well within normal pressures infact. 101% is barely compressed.
np m9
Does anyone here know how bearing surface acts on the velocity and how land seating depth changes pressure?
Greater bearing surface leads to less velocity but how much I’m not sure, same with land seating, if it’s close or touching the lands I’ve read the pressure will spike.
I don't understand by what you mean by the surface question.
QL says that you will get a pressure spike with the same load if you seat into the rifling.
Here's an idea of what I mean
Out of rifling:
And here is the bullet seated into the rifling. Notice how both velocity and pressure has spiked?
We didn't even seat the bullet out any farther, our fictional firearm simply has a throat that is very short. I have a TC 30-06 that is the same way, if I seat to, say, 3.34 OAL, bullets will be into rifling, but 3.3 is fine.
However, some people simply reduce their load and work up if they seat into the rifling, as some bullets are more accurate this way.
I just mean say you have a long bullet with a lot of surface area that contacts the rifling, how does that factor into velocity, m2 ap or some solid copper or even that 247 grain NOE.
? That’s 30-06 though, what kind of pressure spike did it say for that m2 load?
NVM
Saw the second pic.
How do you find the overall length at which the bullet will be in the rifling? Dykem on a bullet in an empty case?