I just breathe....as far as this supply issue.Everybody is doing the best they can.
That rifle is over 70 years old.I'm only 60 and I make some....well,TMI.
The advise to check springs and firing pin protrusion is good.
Have you ever checked heads[pace on that rifle?Could be on the high side,that effectively shortens the fp strike.Ammo may be minimal length...
I consider Grafs a # 1 grade supplier.