sloughfoot
Grandmaster
In previous employment, I was unloading and reloading the 9mm every day. We were issued the 147 and the 124 JHP from a couple of manufacturers.
The powder in the case and neck tension, keeps the bullet from being pushed more than a few thousands into the case. It was never an issue in between the annual qualifications when new ammo was issued.
Now when we carried S&W Model 15's and 38 Specials, we had to be more careful about bullet setback
I don't know about other calibers, but if the powder fills the case, the bullet can't be pushed back too far.
The powder in the case and neck tension, keeps the bullet from being pushed more than a few thousands into the case. It was never an issue in between the annual qualifications when new ammo was issued.
Now when we carried S&W Model 15's and 38 Specials, we had to be more careful about bullet setback
I don't know about other calibers, but if the powder fills the case, the bullet can't be pushed back too far.