TheGuyOfSouthamerica
Moderator
As far as I can see the only thing what can make flip up primers is the spring of the priming arm. If that catches on something the primer gets a push and is sideways or upsidedown.
Priming is a delicate undertakement with which all parts have to fit perfectly.
I just got my 12000 WSP Winchester primers. Finally the gun shop got them in (I am located in Southamerica). Another 10000 WSP should arrive shortly (I ordered them directly from the USA) and that should give me a few years (if not an decade or more) of ammo independence.
Priming is a delicate undertakement with which all parts have to fit perfectly.
I just got my 12000 WSP Winchester primers. Finally the gun shop got them in (I am located in Southamerica). Another 10000 WSP should arrive shortly (I ordered them directly from the USA) and that should give me a few years (if not an decade or more) of ammo independence.