No. But the brass has to be polished to a degree that it is glass smooth for them to cycle reliably.( at least this is what I was told by a guy I met at the range with a 5-7 and a P90. The detail he went into about cleaning and polishing the brass discouraged me from attempting it)Are 5.7x28 hard to reload
ThanksNo. But the brass has to be polished to a degree that it is glass smooth for them to cycle reliably.( at least this is what I was told by a guy I met at the range with a 5-7 and a P90. The detail he went into about cleaning and polishing the brass discouraged me from attempting it)
Welcome to the Forum!Are 5.7x28 hard to reload