I've got something new in the hopper.
7.62x39 loaded with 180gr Rem PSP CorLokt.
I just loaded up three for a velocity check. If it's able to hit 2100 fps, it should expand out to 300 yards at 1633 fps remaining velocity.
Mostly just experimenting. I bought a box of 2000 180gr PSPCL from Midway about 20 years ago, on sale for $99.00. Curious how they might work in the x39.
This loading produced 2020 fps average from a 20" barrel. I should be able to hit 2100 fps before hitting max pressure. I'll go up a half grain and see what happens.
29.0gr H335 - 2111 fps.
OK, that meets the velocity I was hoping for. Doing a pressure vs velocity ratio on QL, suggests this load is at 50,600 lbs-psi. No aggressive extractor marks on the brass, primers lok good, still have all locking lugs on the bolt........(smile).
So now I'm going to load up 10 rounds for a 100-yard accuracy test. I'll probably back the powder off to 28.8gr, and figure that should put me right at 2100 fps.
Here's a look on paper at external ballistics. With a 34 yard zero, this will line up perfectly with the ACSS reticle for the 7.62x39.
Old tests show this bullet expanding to 1500 fps, but realistically it should make a good 200-yard hunting round.....if it turns in decent accuracy.