Best 30 Cal. Semi Auto & Ammo Type For Reactive Targets @ 10yds.

We will be graduating from full auto co2 replicas and ice blocks soon and are looking for suggestions for a compact semi automatic 30 cal for destroying appliances? 

These are what I was thinking however I am open to suggestions.

First I was thinking the new LCS 30( US, made) . It has a dual bottle tanks and takes slugs but, but no removable magazine and does LSC still have leak issues?

Or the Evanix semi automatic 7 shot Max. 7 shot magazine. The previous Max holds air since built but can't shoot slugs. Its $1000 cheaper. It is threaded for a can. And they are very well built but the grip is for a large hand and mine is extra large. Not the most comfortable. 

It's a 10 yard range we will be shooting at. Would slugs rip through computers, coffee makers and dryers more impactful than that of hollow points of sort?

Any suggestions are much appreciated. 

If you know of any high capacity 30 or larger bullpups on the horizon, please share. Thanks in advance. 

Mark