...also...

The Colt SUPER .38 is the name which Colt gave their 1911 in 1929 that was made to shoot .38 ACP just like the GOVERNMENT MODEL was the .45.

In 1929 there was no such thing as the .38 Super. It was the .38 ACP at 1080 fps. This was then bumped up by the ammo manufactures over the next few years till the nominal velocity was 1300 fps with a 130 grain bullet. There were both FMJ and JHP ammo available. The velocity increase was with Colt's blessing as they thought that the then discontinued 1903s could take the pressure. It wasn't till the late 1930s that Colt notified tha mmo companies there was a "problem"...

Part of the solution was to put standard pressure rounds in brass cases and high speed in nickel plated cases. But the boxes were still labeled .38 ACP. It wasn't till sometime in the 1940s or 50s that boxes of high speed ammo started appearing with the .38 Super caliber on the box. .38 ACP was available till I believe the 1980s or 90s...velocity listed was 1040 fps. .38 Super 1280.

That book on the SUPER .38 pictured on page one of this thread...just saw two sell on GunBroker over the last week at $1000 and $930 each...

Bob