[ColtCollector1911]

What are the two Spring weights that come with the Colt Gold Cups? And my barrel is stamped Colt 45 HP. What Does The HP stand for? THANKS For Any Info!

 

[4thHorseman]

I know I bought mine at a pawn shop and the instruction manual says it has a "Green" spring and a regular colored spring. The regular colored spring is for +P's and the green spring is regular.
I'd call a spring Company like Wolf and asked them for the xact pressure. Sorry I can't help more.

 

[BDC]

Coltcollecttor1911
Did you ever find out any info on the 45hp round??Thanks

 

[clark.45]

45HP is a German round, I would guess other european contries as well.

 

[Blokey]

I was under the impression that it is an Italian round (since civilians in Italy cannot possess firearms in military calibers).