I just took my new Pro Hunter to the range to sight in and I tried to use the T7 209 primers. The breech would close but the trigger would not pull back. I happened to have a box of Remington Cleanbore 209 primers so I tried them and the worked great. If you put both primers side by side you can see that the T7's are a little taller. Have any of you guys noticed this on your Pro Hunter's???