I'd heard that, but have no actual experience with the newer TS ones. So I didn't want to state definitively that they addressed it. Do you still lock the bolt manually on those by pushing the bolt handle into the reciever?
I was shooting my CX4 yesterday along with my buddy with the 995. I had no problems hitting soda cans at 50 yards offhand with either of them.
Yup, the bolt is manually held open with the same bolt handle mechanism in the TS models.
The back of the promag magazine is taller than the HP version. When the last round is fired,the bolt comes forward and the ramp that picks up the new round hits the mag follower and is held open (if the front lip isn't tall enough to properly activate the LRHO mechanism).
A lot of people have thought that their promag were working correctly but as soon as you drop the mag to insert another, the bolt slams shut.