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Unread 02-14-2014, 05:22 PM   #6
stressed
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Originally Posted by Sieger View Post
Chris,

Speak of the Devil, here I am again, ha!

For a Luger, I'd stick with either 115 or 124gr bullets, as the system, and its springs, were originally "timed" to this range of bullet weight (130grs will also just slip in under the wire, but barely).

Round nose flat points sound like a good .380 or 9mm Makarov defense effort, but I've had no luck feeding a Luger with a really, really excellent design round nose flat point that Zero has in 124gr for the .357 Sig. They simply will not feed properly, no mater what OAL I've tried with them.

Typically, round nose bullets will feed all eight cartridges through a Luger, without jamming, at around 1.173 inches of OAL, give or take. With flat point truncated cone bullets, a good starting point is 1.14 inches of OAL, give or take.

As to my article on determining proper OAL, right now, its on page 4, of Shooting and Reloading, second article down.

Good shooting, and PM me with any specific questions you may have!!


Sieger
It's interesting you mention this.

My luger functions flawlessly with all 105, 115 and 124.

When I ran a couple 147 FN FMJ it had a failure where it was like I set the round primer down in the open chamber, and closed the chamber on the side of the casing with the round unfired. Wonder why it did this.

Next week I was gonna do some chrono testing, and have a mag full of 158gr FMJ for the test. Guess I can expect those to fail. Subguns eat them like candy, and they remain subsonic through long 10"-16" barrels which is good if you use a suppresser.
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