Air in tires

I'm having issues putting air in new tubes to 35 PSI.
I have new tires with metal stem tubes with new valve cores.
Can't get air chuck to depress valve core enough to input air.
Some goes in, most escapes. I can only get to about 25 PSI.
Tried several air chucks/air hose/compressor combinations.

Ideas?
 
FYI I've had the same problem with some of the chinese air chucks. Find an old american made one and it should work just fine.
 
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