I don't get keeping the action dry.Could please explain why I should keep it dry.
I've shot Contenders for 31 years, and for the last 25 of those years I've used a dry action. Why? Initially because the factory recommended not to use oil in the action. Now it is in the owner's manuals too. The manual which came with my last frame says this on page 13:
"Never use any oils or grease on any internal parts." RTFM.
Oil attracts dirt and grit which can get behind the action parts and tie them up. The Contender is finicky about the interlock safety, and anything which interfers with those parts can result in the action not firing when the trigger is pulled. I suppose if you only used the handgun indoors with filtered air it wouldn't matter much, but I've used mine hunting in wet Southeastern and sub-zero Interior Alaska, dry dusty Arizona, sticky East Texas, the sunny and sandy California desert, etc. and never had a problem with action function
after I kept the action dry.
Another negative to the oil is gumming as it sits in place over time. The result is similar to the dirt - an action which may not fire. I used my three frames for IHMSA competition setting the triggers to about 22 ounces and they functioned perfectly from -25F to +95F. I periodically blast out the action with degreaser if I've been in dusty conditions as a precaution. Can't remember the last time the interlock safety failed to release the hammer.