101 lines
5.3 KiB
Plaintext
101 lines
5.3 KiB
Plaintext
Combat Arms
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2869 Grove Way
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Castro Valley, California 94546-6709
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Telephone (415) 538-6544
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ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»
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º º
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º Slam Fires on M1 Garands, M1A's, FN-LAR's, SAT-48's and M1 Carbines º
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º º
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ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍͼ
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The following information is based on an article in the October, 1983
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edition of American Rifleman entitled "The Mysterious Slam-Fire." Because
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this is so important to shooters of the above weapons, Springfield Armory
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sent a reprint of that article. Since many shooters do not get to see this
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information, Combat Arms is providing the salient or main points to
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consider.
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Slam fires occur when the bolt closes and, without the trigger being
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pulled, the round that was chambered fires and destroys the gun. An
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analysis of these problems seems to indicate that:
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1. Commercial primers are more sensitive than military primers. When
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the bolt slams closed, the free floating firing pin will contact
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the primer. Normally this should not be a problem. However, if
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the round is a reload and the primer is incorrectly seated, that
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may cause the slam firing to occur.
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2. If you are a reloader, another problem to watch for is an
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improperly sized case or one in which the bullet is not seated to
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the correct depth, making the overall case length too long. A
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properly sized case will enter the chamber under finger pressure.
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Never fire a round that fits tightly in the chamber. Never fire
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reloads in a gun that is under warranty. It voids the warranty!
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3. On guns that have had their hammer hooks stoned (match grade
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firearms), if the stoning was excessive, that can contribute to
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the slam fire. People stone the hammer hooks to remove excess
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trigger creep. It should never be attempted except by a qualified
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armorer or gunsmith. Also use caution in modifying the ejector,
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extractor or extractor spring. If the ejector is too short or the
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extractor spring too weak, the bolt cushioning is lessened and
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consequently, bolt momentum to the head of the cartridge case is
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increased. Again, this sort of work should be performed by a
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qualified armorer or gunsmith.
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4. Watch for impending case separation if you are reloading. Look
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for "stretch marks" on the cases. These indicate an impending
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case separation. Destroy these cases by crushing them flat with a
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hammer. Also watch for a bright high pressure ring forming ahead
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of the case web.
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5. Remove the firing fin occasionally and clean the firing pin
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recesses in the bolt. This prevents the firing pin from sticking.
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6. Lubricate with Break-Free CLP (TM). This is one of the finest
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cleaners, lubricants and preservatives ever made. If you do not
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know how to properly clean your weapon, then do not be shy.
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Contact your local gun shop and hire someone there to teach you
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how to do it properly.
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7. Always wear shooting glasses! You have been given one set of eyes
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in this life. If the gun literally explodes while you are holding
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it, you could lose your eyesight. Safety glasses are very
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inexpensive ($4.95 to $29.95).
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As you can see, the biggest factor affecting slam fires is reloaded
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ammunition. In my humble opinion, based on being a shooter and gun store
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owner, not one reloader in 100 knows how to properly reload. The biggest
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reason is that the remaining 99 out of 100 do not carefully study the
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reloading manual and follow instructions. There are many ways to reload and
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only one or two correct ways.
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X-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-X
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Another file downloaded from: NIRVANAnet(tm)
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& the Temple of the Screaming Electron Jeff Hunter 510-935-5845
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The Salted Slug Strange 408-454-9368
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Burn This Flag Zardoz 408-363-9766
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realitycheck Poindexter Fortran 510-527-1662
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Lies Unlimited Mick Freen 415-583-4102
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Tomorrow's 0rder of Magnitude Finger_Man 415-961-9315
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My Dog Bit Jesus Suzanne D'Fault 510-658-8078
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New Dork Sublime Demented Pimiento 415-566-0126
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Specializing in conversations, obscure information, high explosives,
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arcane knowledge, political extremism, diverse sexuality,
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insane speculation, and wild rumours. ALL-TEXT BBS SYSTEMS.
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Full access for first-time callers. We don't want to know who you are,
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where you live, or what your phone number is. We are not Big Brother.
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"Raw Data for Raw Nerves"
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