Contact High Standard with the Serial Number and they will tell you when it was manufactured.
BLue Book of Gun values
I own a .22 High Standard Victor and owned it for over 30 years. I have put over 30,000 rounds through it. I have the 4.5 and 5.5 inch barrels. This is the most accurate pistol I have ever owned. It is easy to clean and shoot. J.C. Beaver, OH
The Supermatic Trophy used the ML prefix from 1951-1953.
The only way to know is to try with you specific weapon. Some will, some won't.
High Standard.
No way to know without trying.
Good 22.
100-1000 USD
1,000,000,000
1970
1974