Almost as soon as Colt introduced the Series 80 pistols, they began to be denigrated by the purists, and all the pre-Series 80s…whether they were built in 1912 or 1982…were to become known as “Series 70” guns…even the pistols not made by Colt. Now, it seems that even Colt has taken to using the term […]
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 […]
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 […]
The 1911 style pistol with internal extractor, as originally designed. The extractor’s role in feeding is often misunderstood and underestimated. Most important is the deflection. That is, the amount of the wall behind the claw that protrudes beyond the guide block into the breech area…and this is where I’ve found problems in pistols produced in […]
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 […]
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 […]
Evolution of the 1911 in Pictures The evolution of the 1911 started in 1898 with the pistol that became the Colt Model 1900. Chambered in .38 Auto, it was a locked breech, short recoil operated pistol that sported a twin linked barrel…one fore and one aft…and a non-tilting barrel. The Colt Model 1900 The next […]
During one of my rare sojourns away from Castle Doghair, I was privileged to encounter an old First Model Iver Johnson Owl Head revolver in caliber .38 S&W that was still actually functional…which means that it wasn’t fired very much in the last hundred or so years. With wrought iron frames and low carbon steel […]
In response to the flak that Colt has been catching over their failure to use a barrel with an integral feed ramp on their new Delta Elite so as to provide a fully supported chamber, I’ve been asked to weigh in. First, a little history of the ramped barrel with the fully supported chamber. […]
M1911 Locked breech/Short Recoil basic function Caliber .45 Auto firing a 230 grain bullet at 830 fps: Bang! Assuming a condition of zero headspace, both bullet and slide start to accelerate at the same instant. The slide grabs the barrel upper lugs and hauls the barrel backward with it. At nominally 1/10th inch of rearward […]
