Well I went and bought a 10" barrel in 222 Remington for my contender.  Spent some time at the reloading bench and loaded up fifty rounds with some Accurate 2230c powder that I have and some 46 grain remington Hornet bullets and CCI 400 primers.  I started with 21.5 grains and moved up in half grain increments ending with 23.5 grains.   I found the load it liked was 22.5 grains of the 2230c powder.  I was able to shoot three 3 shot groups that measured 0.61 to 0.72" with this load.  It open up to 0.88 to 0.97 with 23.0 grains so I settled with the 22.5 grains.  This load will be my primary PDawg load.  I stopped on the way home on Thursday and did this to a few P Dawgs.  
  
 
Yes it will work just fine. For that purpose.