let us know what range so we can educate them on the laws. Nothing illegal about using hi-caps in featureless rifles, so long as they aren't fixed mags...
don't worry, you're not the first, nor will you be the last, to hear that FUD, but the range does have the right to restrict hi-caps in their place of business if that's what they want, but there's no law that says you can't use them in your rifle anywhere else.
Most civilization is based on cowardice. It's so easy to civilize by teaching cowardice. You water down the standards which would lead to bravery. You restrain the will. You regulate the appetites. You fence in the horizons. You make a law for every movement. You deny the existence of chaos. You teach even the children to breathe slowly. You tame.
People Should Not Be Afraid Of Their Governments, Governments Should Be Afraid Of Their People