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Re: Reloading for USPSA Carry Optics

Posted: Sun Feb 10, 2019 7:21 pm
by GlennSFX
Weapon wrote:
Sun Feb 10, 2019 5:47 am
For coated bullets (acme lipsticks, blue bullets, etc), I would pull one and check the crimp. In my experience with them, you have to use a light crimp or the coating beneath the crimp line will sheer off on firing (or pulling). Some coated bullets need a crimp that is about .01” beyond just removing the bell added to allow bullet seating. When I pull a coated bullet, I want to see just a really light line around the bullet in the coating. If it looks like a very defined, deeper ring into the coating, I back it off until it is a faint line. I will add a pic of this when I get back home.

If you see specks of color from the coating in your machine, it usually means you need to slightly increase the bell of the case mouth before seating the bullet.

Additional note on crimping: Berry’s plated bullets also require a light crimp or you will get some bullet deformation and end up with paper plate sized groups at 25 yards.

COAL. 1.10” sounds a little short to me. Obviously, you need to double check these by plunk testing them in your pistol’s barrel but I would try to get them out to around 1.135” to 1.140”. Longer loads tend to feed slightly better out of double stack mags. You may have to bump your powder charge up ever so slightly to account for the extra space inside the case but it is usually a very, very small amount. I expect my 145gr RN loads to end up between ~1.140 to 1.145”

From what I had read, I also saw that you don't want to over crimp the coated bullets. I kept the crimp on the light side based on the setup instructions with the Lee dies.

When I was testing the press setup, I made up a few rounds with no powder. I took one, drilled out the primer pocket, and punched out the bullet pretty much straight out of the case. There was a tiny nick in the first picture. That's pretty much all I could see. What are your thoughts?

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Re: Reloading for USPSA Carry Optics

Posted: Mon Feb 11, 2019 5:11 am
by GlennSFX
@Weapon So I readjusted the press to have a COL of 1.135". I didn't have any loading issues at 1.10" so the longer length should make misfeeds a non-issue. From what I've read, shorter lengths are more accurate. The loads I tested were plenty accurate to 20 yards, so the 1.135" should be a good compromise. I tested the original 1.10" rounds in the gauge and in my barrel without any issues. The 1.135" was fine also. I made a 1.140" to test fit and it was fine as well.

I'll make 20 with a COL of 1.135" and test them out. I think I'll load 10 with 3.0g and 10 with 3.1g of Titegroup and see what I get on the chrono for PFs. Trying to keep it between 128-130.