Tam puts some Winchester Ranger, and Federal HST +P 230 grain JHPs through a good range of .45s to see what the muzzle numbers look like.
So all I concentrated on was the Federal HST because that just so happens to be the ammo I carry in all three of my .45 ACP business guns. I have two S&W 1911, one 5″ and one 4.25″, and of course the snubbie PM45 that has a 3.1″ tube.
You always have to wonder how these bullets perform. The reason why I carry the +P ammo in the Kahr is because it’s the ammo EVERYTHING runs well on, and when I shot a few mags of the hot stuff through the little gun when I first got it the recoil difference was noticeable, but only academically. If the gun went from a soft-shooting gun that was easy to get back on target to feeling like I was handling a live python going for my throat, I would have bought maybe some Speer Gold Dot 230 grain standard pressure loads. As it turns out the gun eats everything of good quality (the tight chamber on this gun is known to choke on steel-cased ammo, so I’ve never attempted to shoot that stuff, and it has gummed up pretty bad on reloads where the crimp might have been a bit off) so why not just load the same ammo into all the guns?
Still what does that short pipe do to the terminal performance. In Bobbie’s 3.75″ she was experiencing velocites slightly better than most factory Standard Pressure loads. I’m sure the half-inch of barrel is going to lose some velocity, but not a ton. That’s awesome, given that standard pressure loads have a lot more to lose.
Also what’s REALLY interesting is in both loads she didn’t see much difference in the 5″ up to the 6.5″. Makes me think that modern people aren’t loading .45s for the standard 5″ 1911 that was one ubiquitous in this caliber, but to the 4.5″ plastic guns that are now the go-to hater to toss 230 grain ball down range. **NO DUMMY SHE TESTED GUNS IN 3.75″ 5″ AND 6.5″! IT’S WEER’D WHO OWNS THE COMMANDER, NOT TAM!**
And in the end those of us who carry stumpy .45s aren’t dealing with huge loss of performance. That being said I am reminded of these ammo tests:
Now what Tam saw was a 100 FPS difference, and Andrew saw 200FPS, and with that drop in performance Andrew saw the round go from expanding to failing. Still his ammo was carbine ammo, and we’re ONLY talking pistols. I hope Federal took that into account, and I hope more I never find out either way.