[prp00]

How do change the cylinders 22lr to 22mag, Please help prp00

 

[seedy]

I have a high standard sentinal mrk IV and have remove the cylinder by pushing in a spring loaded button in the front of the yoke.CD

 

[hawkeye1]

What model is your High Standard? I have a Longhorn Convertible. It has a pin on the left side of the frame that is pushed out to one side. Then push in on the spring loaded button on the front of the frame which will release the cylinder and attaching arm. Install is reverse.