This Ocats system looks interesting in particular for dry fire practicing right in the house!

Ocats practice system


"With the addition of a laser training device to your firearm, the OCAT System can change almost any location into a virtual shooting range. Basement, rec room, garage, all can become your very own practice range. In laser training mode, dry-fire your firearm while the OCAT System records each laser flash as if it were a live round fired down range. Instead of spending potentially hundreds of dollars in live fire practice sessions, use a laser training device to fire thousands of virtual laser rounds for a fraction of the cost."
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That the first shot from it's cold barrel from my C.F. hunting rifles hit where I want it at 200 yds is more important to me that what groups it may shoot at 100 yds!

My match rifles must shoot groups. We get sighting shots at matches!