frame defect model 66 no dash

[WR Moore]

Actually, at that time Colt was having serious QC isssues, heat treat of slide stops being just one. It didn't help matters that the extra power recoil spring thing was going to extremes. There were folks who figured if 16lbs was standard and 18.5 might be a good idea, then 22-24 lbs should eliminate recoil/muzzle rise entirely! In a few cases, it actually put the front sight-along with the rest of the slide-IN the target.

I've still got a customers 1911 barrel with no underlugs on it from those days. I use it along with feeler gauges to determine hood length.

 

[xcpd69]

As usual, there is often a kernel of truth in seemingly outrageous statements.

In a post above someone told somebody that firing 357 Magnum loads after a long and steady diet of "light target loads" could be dangerous.

BS?

Not necessesarily.

Shooting a large number of 38 Specials in a 357 chamber, CAN leave lead deposits in the fired chambers in front of the 38 Special case. In extensive use, possibly even flame cutting or erosion.

Chambering the longer 357 cartridge, afterwards, can be troublesomeas the additional length goes into this "leadded and or erodded area.

Can cause sticky extraction at least, and MAYBE other problems.

Thourough cleaning of chambers after each range sesssion can mitigate this. Or if you reload, load lightly in Magnum cases for "38 equivalent loads."

For the average shooter, probably not a real concern, and the heavy useage guys already are usually aware of the 38 in a 357 chamber situation.


YMMV and JMHO "caveat emptor"

 

[ferdieguba]

No throat erosion in the chamber, the loads fired were light loads in 357 cases, chambers totally clean and no evidence of gas cutting on the top strap.
I'm aware of 38 Spl causing leading problems and I imagine this would raise pressures if a full pressure 357 magnum cartridge was loaded without proper cleaning. Also the forcing cone in the barrel is clean. This is why I was baffled by the comment that the cylinder would give way under factory loads. Might try and contact the guy to clarify the situation because if he actually believes this then he needs to research problem as I have never come across a S & W cylinder splitting fr just firing a normal load

 

[ferdieguba]

Okay, that gave me a much-needed chuckle.

I'd have adopted a serious & thoughtful expression, and then asked the gentleman if it made any difference if I'd left my 1911's stored in the dark, instead of in lighted conditions, myself.

Makes about as much sense.

I've had one of the other unit armorers report that they've had at least half a dozen broken slide stops in some special enforcement 1911's that see a lot of monthly training. I recommended they consider replacing their recoil springs a bit sooner (before the belts show through the tread, so to speak), especially since they've been using 230gr +P loads that hit about 990fps. Just a thought.

The funny things you can hear. Some are even funnier when you hear them espoused with a straight face and an ever-so-serious mien.

Didn't see that in Colts but did see that in Chinese Norinco barrels, I did not check that I assumed it was Chinese quality control and put in Wilson barrels