Armscor .22mag ammo no good in NAA revolvers???

[Vt.birdhunter]

From a recent sportsman guide catalog:

"Please Note: This ammo is not for use in North American Arms brand firearms."

http://www.sportsmansguide.com/net/cb/cb.aspx?a=763435

Anyone know the reason?

 

[StrongSideArmsInc]

I called NAA about a year ago and asked, as I too noticed on the box, and i own a gun shop and sold that very combo. NAA told me that PMC now makes the 22mag ammunition for Armscorp, and they have had excessive pressure issues with PMC ammo and it has caused 2 guns to crack. they gave me no more information than that.