wdigeorge,
It has been proven that Hart barrels will not stand up to the stress of rapid fire shooting or full auto if needed and keep shooting accurately in semi.
Gus Fisher has stated this as well and he is a MTU armorer.
I shoot a Krieger heavy barrel on my supermatch and it shoots every bit as good as a Douglas.The only advantage with the Krieger is,the bore is .002 smaller diameter and will last about 3000 rounds longer when it comes to accuracy.
I was saying above that Douglas is far better than a Hart barrel.I've never used a Hart barrel and never will.HTH
warbird
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