How often to clean a target 1911

How often do You clean Your target 1911's?

I try to keep an eye on my feed ramp. I shoot Bullseye powder and that stuff is pretty dirty. It tends to gunk up the feed ramp after a while. If I notice it’s getting bad I may clean it. I have let it go before until it had a failure to go into battery. And it was REALY dirty then. I don’t have a round count. Maybe 500 or so rounds then clean. Maybe more. I add lubricant to the slide and barrel where it contacts the bushing as I shoot through those numbers, to keep it from hurting itself over time but that’s about it. More abusive to constantly take it apart.

Shooting cast lead with Bullseye. 
 Clean gun  when there is a malfunction, while practicing. The case head has to slide up the bolt face and under the extractor freely. A tooth brush works .
Don't forget the magazines. 

If going to a match, clean and fire some rounds to check function & zero before going.

I dont have a set number of rounds fired , to clean.  When i see dirt building up in the circled area , i clean it, but not always the bore.  Cast bullet lube conditions the bore.

Break Free CLP  on slide rails and  barrel bushing. Dont run a dry gun.