Thanks everyone. I have not tried to see if the magazine seats all the way and would certainly make sense. I have cleaned the original magazines before but not the newer ones which cause the same problem but will check the spring anyway. Will have to wait until tonight before I can check.
As to they type of ammo, they all have the same problem. Most are reloads but new ammo also has the same problem. Bullets are seated to published depth and had not been an issue before.
The more I think about it, this did not suddenly happen but did come on quickly because I recall thinking one of my magazines was causing a misfeed as the others worked but then all of them seemed to have an issue over a couple times at the range.