pcf said:
Wayne not to be a total smartass but how do you know that your factory ammo is performing in the appropiate range in your pistol? And have you tested your current lot of ammunition?
Good questions.
Well, I don't know. I have no way of knowing. It's a case of having to trust some experts to do their job, vs. trusting myself, a complete amateur with no way to measure the performance of my loads.
In trusting the experts, I am hoping that their experience, their desire to have favorable reviews, and their desire to keep lawyers at bay will motivate them to produce good defensive loads.
I'd rather trust myself, but having neither ballistics gel nor a chronograph, I lack the most basic tools to verify that my loads will perform properly.
How should I test the defensive ammo I currently carry? Of course I've tested it for function in my pistol. It goes bang every time and hits about where I aim. What I'm trusting Speer for is that they've matched the velocity to the bullet so that the bullet will perform well, something I will gladly do myself once I get a chronograph.
I claim that as long as a round goes "bang" every time with the right velocity for the bullet to do its job, that variation in components doesn't mean anything for pistol defense ammo. It's not bullseye, and it doesn't matter if the ammo makes a 6" group at 25 yards or a 3" group. Any variations in ballstics will be insignificant when I'm shooting quickly, or on the run, or my hands are shaking from adrenalin.
(Added): I think I was a little snippy this morning when I wrote this. I'm sorry. Not only did you ask a really good question, but I'm not convinced I'm correct in my opinion. For one thing, some load manuals give velocities for their test barrels. Is there so much potential variation in velocity from components or pistols that one couldn't just pick the load with the bullet manufacturer's target velocity and use that?