Thanks after doing alot of searching online I was kind of surprised the majority of RG6 sold was copper coated steel rather than pure copper even from name brand companies. Now that doesn't mean you can't find pure copper but it is more expensive.

The Beldon cable I used for the main run from my antenna to my CM7777's power supply and then another run to my tv was the expensive 1694A so I have used the best but wanted something less expensive for other shorter runs.

Anyway nice to know even though pure copper is the best probably the majority of situations people are using copper clad steel with no issues.