Sig 7.65 parabellum?

I'm curious as to why 7.62x21 was chosen over the 7.63x25 mauser... The .195'' longer OAL of the Mauser round surely couldn't be the reason could it?
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Sure it could.
The guns chambered for 7.63x25 either had no working parts in the grip other than the magazine (Borchardt and Schwartzlose) or put the magazine out in front of the trigger guard (Mauser and Mannlicher.)

But when Georg Luger moved the recoil spring driving the toggle action out of the Borchardt's "bustle" into the grip behind the magazine well, he shortened the case to keep the grip size reasonable.
 
I forgot about the Schwarzlose. I talked to a Russian collector a few years ago who told me that some were shipped to and sold in Russia in the early 20th century, and that there are still some in existence.
 
Yeah.
We get barge loads of roughly made army surplus but where are all the obscure contract guns? The Russians apparently never throw anything away.

Putin could make friends with all the gun collectors by putting Schwartzlose, Mauser, and Colt pistols, S&W revolvers, and things like Colt Berdan rifles on the market.
 
I've had a BDA.45 since 1980, and have no intention of parting with it.

I have read at various times and sources, that the BDA had a tendency for the slide to jump the frame rails and come off the gun. Has that ever happened to you?
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Never, not once, or ever even a hint of anything like that. And I have never run across any mention of such a thing, in print, anywhere.

Are your sources, or perhaps you, confusing the BDA (SIG-Sauer mfg P220) with the other "BDA" sold by Browning, which is a different design, and a .380acp?
 
Are your sources, or perhaps you, confusing the BDA (SIG-Sauer mfg P220) with the other "BDA" sold by Browning, which is a different design, and a .380acp?
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No, it was the .45 BDA, or at least I have thought that, but, since this was about 30+ years ago, I don't remember the source of the complaint, only that it allegedly happened. In retrospect, looking at the construction of the gun, I don't see how it could happen.

Now I'm beginning to wonder if I have confused this with another contemporary make of pistol. I haven't actually thought about it for years, but the pistol I am thing of had four locating tabs/guide rails inside a stamped slide, and to replace the slide on the frame, it was necessary to place the four tabs with matching cutouts in the frame slide rails, something like an HK4.

I will say one thing: It sucks when your memory starts to go.:(
 
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I don't see how it could happen with a BDA, unless your "grip" rotated the take down lever 90 degress (not happening). The BDA (Sig) was on the market for a few years before the US testing of the Beretta caused cracked slides and "slides coming off".

Maybe the complainer was talking about that?

I agree, it sucks when your memory starts to go. In my case, the worst part is that (so far) I am keeping the memory that I used to know, and have lost the memory that does know....drat..;)

There are no practical advantages today to the .30 Luger cartridge. Even though its relative high speed has benefits, the are effectively canceled by the small bore size.

Sure, it has great penetration, but in other categories, it is lacking. Compounding this is the fact that until very recently there were no factory loadings with anything other than an FMJ bullet.

I can clearly remember reading Skelton (or maybe it was Keith, or maybe both) talking about the .30 Luger and .30 Mauser, and their poor performance on small game, particularly jackrabbits. Again, due to the ammo of the day (FMJ).

As an oddity, its worth collecting, but as a practical gun/cartridge combination its outshined by the 9mm Luger today.
 
I don't see how it could happen with a BDA, unless your "grip" rotated the take down lever 90 degress (not happening). The BDA (Sig) was on the market for a few years before the US testing of the Beretta caused cracked slides and "slides coming off".

Maybe the complainer was talking about that?
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We actually had one in the store I worked at, and I can almost see it in my mind, but now, I have to say that it couldn't have been the Browning; At least not the way it was constructed.

I also vaguely remember field stripping whatever pistol it was and looking at the four tabs inside the slide that also acted as the slide's guide rails. This is going to drive me nuts. Was there an HK of that era that was so constructed?:confused::confused:
 
I've been handloading for a .30 Luger for about fifteen years. It's a fun cartridge, though a bit of a hassle to load.
The shouldered case requires lubing for sizing, and after sizing a few times, trimming to length.
The groove dimension of the original Luger barrels is about .3095", so a lot of "thirty caliber" bullets aren't really appropriate. I use a Lee .309" sizer to reduce .311" - .312" bullets, but I think there is a factory jacketed bullet of ~90 grains, though I've seen it only online.
If I lived where there were a lot of rodents that needed eradicating with gunfire, I might choose my Luger for the job. An 85gr XTP at 1200fps would make life difficult for rats.
I'd like to get a .30 barrel that fits in a standard Hi-Power, and do some experimenting with cases made from a stronger parent cartridge. I've formed .30 Luger cases from 9 Super Comp and 9x23, and I think you could get some really impressive velocities.
 
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