Privi PPU vs Aguila

[INLAND44]

Every once in a while surplus ammo shows up at CMP. I buy what I can afford at the time, 2 to 4 cans, and it usually lasts until it becomes available again.

https://www.milsurps.com/images/impo...fab30733-1.jpg

U.S. ammo - always what to use in a U.S. firearm.

[RASelkirk]

Speaking of PP, I bought a thousand rounds of .308 for my RRA AR-10 and none of them would chamber correctly. After lots of head scratching, I found the casing necks to be slightly bulged, apparently when the bullets were pressed in. Ended up selling them to a guy with a lever-action Marlin. When we met for the sale, he had to slightly force the lever, but once he did, that round chambered fine every time. Weird! Anyone else seen this?

Russ

[jimb16]

It was the crimp that did it. You need to be careful with crimping due to case neck swelling. If the dies got out of adjustment at the factory, the crimp could have gotten a bit too deep causing that problem. Not something that is likely to be noticed immediately.

[imarangemaster]

I have had that problem with a batch of ammo I reloaded. The Lee Factory Crimp Die crushed it too much, and would not chamber. I thought it might be case length, but it did it to both ends of the spectrum. I went back to a roll crimp, with just a hint of factory crimp.

As for Aguila, it is purposely loaded under-powered to about 150 to 200 FPS less than Remington Factory or USGI. I find it works better if you use a degraded (weaker) recoil spring that is under 9.75" inches long. (New is 10 1/4"). It stopped stove pipes, but wouldn't load from a 30 round magazine that was close to full. I also had to switch to the 200 on the rear sight to bring the slower Aguila rounds up to the same POA of Remington on 100/150.