10MM for Woods Gun?

You can get an occasional or rare bad round from ANY ammo manufacturer. The only way to be 100% sure is to work up a load and bullet type that is totally reliable in your individual gun and hand load each defense round one at a time. No automatic powder measures. No progressive presses. No shortcuts.

Haven't had a bad round from Underwood in the 3 years that I have been shooting in earnest and they have ammo that I like for every caliber and situation that I need but I still look forward to beginning to hand load for economy in practice rounds and reliability in defensive rounds.
 
Maybe I used the wrong term, I meant the manufacturers that push the velocity figures above the standard ammunition company's (Rem, Fed, Win, etc.). I was also referring to the affect they may have on reliability/functioning.
 
no commercial manufacturer is pushing the limits of 10mm, it was designed to run at the pressures most boutique manufacturers sell, its the mainstream companies (Rem, Federal, etc. ) that are selling weaker loads comparable to 40cal performance.
 
It's only recently that ammo manufacturers have started making "full-power" (meaning original specs) 10mm. The majority of major manufacturers have been dressing up their 10's in drag to look and feel like 40S&W. ; )
 
no commercial manufacturer is pushing the limits of 10mm, it was designed to run at the pressures most boutique manufacturers sell, its the mainstream companies (Rem, Federal, etc. ) that are selling weaker loads comparable to 40cal performance.
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I believe guv is correct in questioning this, and is what I mentioned above. When the guy I mentioned contacted Glock about all his guns not functioning with the heaviest loads he could find on the market, he was told that those loads were outside the cartridge performance envelope that the gun was designed to function with, and Glock saw no problem.


Guv Maybe I used the wrong term, I meant the manufacturers that push the velocity figures above the standard ammunition company's (Rem, Fed, Win, etc.). I was also referring to the affect they may have on reliability/functioning.
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This is exactly what the guy I mentioned came up against.
 
Higher pressure ammo can be just as reliable as the lower pressure major manufacturer loads (not talking about out of spec pressures). If your gun can handle it and is tested with a good number of rounds down range there should be no problems. The only "disadvantage" of the higher speed stuff would be fewer rounds fired over the lifetime of the pistol, not reliability.
 
Malamute said:
I believe guv is correct in questioning this, and is what I mentioned above. When the guy I mentioned contacted Glock about all his guns not functioning with the heaviest loads he could find on the market, he was told that those loads were outside the cartridge performance envelope that the gun was designed to function with, and Glock saw no problem.
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I dont believe any commercial ammo mfg would purposfully produce ammo outside of SAMMI specifications. I cant speak for Glock but would assume they designed it to use any ammo within spec or state otherwise in their owners manual, Ive never heard of Glocks not handling full pressure 10mm even the ammo manufacturers often state the actual fps/ftlbs from glocks on their full pressure loads.
 
The only "disadvantage" of the higher speed stuff would be fewer rounds fired over the lifetime of the pistol, not reliability.
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Correct. Don't confuse reliability with durability.

If you shoot only .40-level 10mm ammo in a 10mm pistol - being a large-framed and typically beefed-up gun - it'll run reliably and forever.

If you shoot only full-power (but in-spec) 10mm ammo, reliability shouldn't be an issue until the parts have sufficiently degraded (worn down) to the point where they need to be replaced (starting especially with springs). Keeping a careful eye on the parts & spring wear can, to some extent, mitigate that loss in the service life of the pistol. This is especially important with Delta Elites and other 10mm 1911s.

When you run all, or mostly, full-throttle ammo through a 10mm pistol, you have to accept the trade-off that you'll see some shortening in its service life. But in return you're getting a lot of high-performance out of what is clearly the most versatile cartridge that can be housed in a semi-automatic pistol of reasonable size and weight.
 
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I cant speak for Glock but would assume they designed it to use any ammo within spec or state otherwise in their owners manual, Ive never heard of Glocks not handling full pressure 10mm even the ammo manufacturers often state the actual fps/ftlbs from glocks on their full pressure loads.
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What some posters in this thread don't know - because they've never studied the design history of the G20 - was that following the failure of the 1st prototype G20 in the Calif Hwy Patrol's 10mm pistol trials, Gaston had his engineers re-build the 2nd prototype G20 purely to handle the hot Norma 10mm ammo of the late 80s, which was still plentiful back then.

Once they built a successful G20 that could handle a diet of full-power 10mm ammo, they then built the G21 off the G20. That was obviously an easier task, since the .45acp is a much lower pressured round.
 
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wow

Who would have thought it? Seven pages of replies, 172 posts and still going.
who says the 10mm is dead?

Again, for me, to stay on topic, its the Glock platform. Flat, compact, durable, high capacity, enough power to keep this debate going anyhow. No big man eaters here in my area, but I quit carrying magnum revolvers any distance afoot once I acquired a G20, just cause it was easier.
 
I dont believe any commercial ammo mfg would purposfully produce ammo outside of SAMMI specifications. I cant speak for Glock but would assume they designed it to use any ammo within spec or state otherwise in their owners manual, Ive never heard of Glocks not handling full pressure 10mm even the ammo manufacturers often state the actual fps/ftlbs from glocks on their full pressure loads.
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I dont know what SAMMI spec is on the rounds in question, but the SAAMI spec doesnt mean the gun will function reliably with any given load just because it fits the pressure spec.

Great, I'm betting G will be happy to know that his 8 or 10 or whatever guns really didnt fail to function reliably because you dont believe they should have any problem with any factory load. If youd like to discuss it with him, and let him know he was mistaken, I'll PM you the discussion thread elsewhere, you can then contact him and get him all squared away on 10mm glocks. Let us know how that goes.


If you shoot only full-power (but in-spec) 10mm ammo, reliability shouldn't be an issue until the parts have sufficiently degraded (worn down) to the point where they need to be replaced (starting especially with springs).
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Yeah, shouldnt is a tough one. Then all that real life happens and shouldnt theories look pretty weak. I think you may have missed the point I made above, or are perhaps addressing something else? My apologies if I misunderstood.
 
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LOL......

I even speak (fair) German, and I could not understand what that engineer was saying it was such a riot! LOL. Seriously, wow - going on 8 pages now. What this thread HAS accomplished is that it settled me on 10MM. Going to haggle tomorrow with the LGS to see how much off the price of the three under consideration they will come - COlt DE, Kimber, and yes, now I will revisit the Glock - but it is still a distant third. Details and maybe pics later in the week.

J
 
Rock Island makes a couple 10mm's in a double stack that might be worth checking out and $605.00 can get you a Tanfoglio Elite Match single action CZ type action. Actually a good time to go for the Tanfo. They were recently up to $700.00+.
 
I can get by in Spanish but he was incomprehensible. Thank goodness for the "subtitles".

The video does speak for the contagious nature of laughter though. Had me chuckling along too.
 
I carry my Glock 20 SF with a LW 6" barrel as my woods gun.

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After I posted my response above, I watched the video linked in an earlier post. I sure was laughing. They asked for a single stack 9mm, and we gave them the Glock 40!:D:D
 
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