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Abraham wrote:WildBill,

In general, I don't care for standard Winchester ammo, but the M-22 40 Gr, LR, round nose works like a champ in my 15-22, but not in my Buckmark pistol...weird.

I think they said it was light primer strikes that caused the problem. I don't know if the M&P 15-22 firing pin has more force than the Buckmark, but it wouldn't surprise me. They
didn't have any Winchester 22LR at Academy so I couldn't buy any.

Abraham - I was thinking about this post and it was the M&P 22 Compact that had issues with the Winchester ammo, not the M&P 15-22.

I recently purchased an M&P 15-22, but haven't been to the range yet.
I have read many reviews and the only problem ammo that I have seen is Winchester, but that was due
to problems with the ammunition, not the rifle.

I have read that the rifle was "specifically tested" to perform with the CCI AR Tactical.
As I understand it, this ammo is identical [bullet weight and velocity] to the CCI Mini-mag except the bullet shape is more rounded on the nose.
http://www.cci-ammunition.com/products/ ... oadNo=0956

I hope to get to the range this week and try my new rifle. I purchased some CCI, Federal, and Remington ammo at Academy so
I can try them all. I also have some older Remington and Federal in my ammo cache that I will try. I have had some private
conversations with Pumaguy about this and don't think there will be any problems with any of them.
I will make a post after I go to the range.

I also bought an M&P 22 Compact, which I haven't shot yet. It is a nice looking and feeling little gun and has great reviews.