I have a nice little Winchester Model 70 Classic Compact in .243 win. and am wondering if there is any way to convert this rifle to detachable magazine. Are there any aftermarket products, or gunsmiths that would do this?

When you say clip feed, what you are saying is multi-round charging as in the hi-power game. I think you really mean magazine feed as in remington DM or such.

Thanks for the correction/clarification.