urbanrifleman
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The 22-204 has slightly more capacity than the 223AI so my guess is the 20-223AI will have slightly less than the 204. The 20 Practical is so close to the 20-223AI with no feeding problems, no wasting components fire forming, hard to think of going AI.
I think I would stick with the 20 Practical if repeating is the goal in a standard Rem 700 or Savage.
However for pdogs you don't need a repeater. And a single shot follower works perfectly.