Tag Archives | John Travis

Blowback vs Recoil Operated

There seems to be a misunderstanding of the similarities and the differences between these two basic designs. so I thought I might be able to clear up some of it. First, let’s look at what recoil is and where it comes from…what causes recoil. Recoil is the reaction side of an action-reaction event.  Newton’s 3rd […]

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1911 School, Feeding Part 3 of 3.

The next critical dimension is the cartridge OAL itself. Too short or too long and you’ll have problems. The issues that so many people ascribed to the 1911’s failure to feed hollowpoints came from the old Speer 200 grain JHP “Flying ashtray” in the 80s…but it wasn’t the size of the cavity that caused the […]

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1911 School, Feeding Part 1 of 3

In order to effect a better understanding of the dimensions and conditions critical to reliable feeding in the 1911 pistol, I thought this might be a good idea to go into more detail than the average magazine article. The first critical spec is feed and barrel ramp angles. The feed ramp is ideally 31-31.5 degrees […]

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Old 1911s and old springs

In the spring of 1991, when I lived in Rural Hall, NC I got a call from my stepfather. His aunt had died at the ripe, old age of 96, and her children had discovered one of his uncle’s pistols in her attic, wrapped in a diaper and stashed in a hat box. He said […]

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More on the 1911 magazine.

Since the subject of magazines comes up a lot… There is only one magazine design that presents the cartridge to the 1911’s chamber correctly and guarantees full controlled feed…as designed and intended. That would be the original or “GI” design that allows the rear of the cartridge to rise at close to the same angle […]

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Full Length Guide Rod and the 1911

Full Length Guide Rod and the 1911   A question came up about full length guide rods’ function is preventing spring “kink” or flexion.  This old fluroscope photograph of a 1911 caught at the instant of firing shows that it can’t happen with the original guide rod…with only 5 or 6 unsupported coils.  The spring’s […]

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