7.65 parabellum

[unspellable]

I have been measuring barrels! Not worn out barrels either. I'll go into a little more detail!


1: DWM Model 1920, condition as unfired, perfect

2: DWM Model 1920, condition very sharp, shiny and crispy

3: DWM Model 1920, poor, looks like somebody put it away with corrosive primer gunk in it as it is not all that worn.

4: DWM Model 1920, condition pretty good, shows some use

5: Mauser 1942, rebarreled, condition sharp, shiny, and crispy (Who rebarreled it? I'm wondering if it's a french occupation item.)

6: Mauser Interarms, unfired

7: mauser Interarms, unfired

8: Ruger P89, near new, 100 rounds through it

9: Ruger P89, unknown usage, but in good condition


Not one of these barrels measured less than 0.3110 inch. The largest went 0.3115. This is why I am questioning the use of 0.308 and 0.309 bullets. I do have a bunch of hard balls from a gun show that were sold as being for the 30 Luger and they measure 0.3110 but they are loose in a bread baggie and I don't know who made them.


The near new Ruger is mine. With Peters ammo the ejection was not at all enthusiastic but it was reliable. With Winchester ammo I had malfunctions. All this with the soft recoil spring. With Feochi it would jam the nose of the first cartridge against the feedramp when you released the slide. After that it would function. Did this with two new magazines. The ramp seems pretty smooth. The Fiochi does have a different ogive curve than the Winchester.


Meanwhile I'm doing the standard trick of switching magazines in the Lugers. That seems to be helping some.


What sort of primers in the Finnish stuff? Corrosive? Berdan?


Years ago I shot semi-wadcutters and wadcutters in my 30 Luger. I'd like to do that again and try some serious target shooting.


One odd observation: Never saw a jackrabbit run after I hit it with a 30 Luger hardball. I've seen them run after getting hit with a 455 Webley, 38 Special, 357 Magnum, 30-06, etc., wtc. Go figure.


unspellable