What’s causing this ???

[MtnOak]

Been loading off and on for several years and this started happening yesterday , 308 fed brass, 110grn v-max if I try to seat below 2.8 OAL this is what I'm getting and these bullets are barely seated in the brass, been seating 2.7550 and rifle shoots optimal but starts opening up in 2.8's
why is the bullet pushing the neck down into the shoulder? Load is not compressed, lots of room left between bullet and powder.

 

[7stwnut]

Looks like you are crimping them while trying to seat them deeper. Maybe try backing out your seating die.

 

[trout004]

Looks like you are crimping them while trying to seat them deeper. Maybe try backing out your seating die.

I think 7stwnut is right...Is the die adjusted too far down in the press? Try backing the die away from the shell holder a few turns then adjust the seating screw where you need it.

 

[Hugnot]

I see indications of crimping on squashed round - like at end of case neck.

 

[Old Rooster]

I agree with all above.I don't crimp with my seater die,ever.I set my neck tension with my Redding bushing die and just seat my bullet with seater die to the depth I want.
I then use a Lee factory crimp die to put a light crimp on the case and have never had bullet setback ever.Even on the 300 Weatherby mag I never get bullet setback as the neck tension plus the light crimp is all I ever need.

 

[31perersen]

I also believe they are correct, it looks like when I got to extreme crimp tests/comparisons a few years back. If you are unfamiliar with how to back to crimp tension off for your die just check the directions in the manual... if you don't have it "google" it for your particular die set.

 

[31perersen]

sorry, you were posting while I was so I didn't see this last reply above. There's no way the shoulder threaded down and was crimping while you were actually trying to shorten the depth of seating? It wouldn't take much.

 

[purpledragon]

Why are you crimping anyway?? What rifle r ya shooting them in??

 

[MtnOak]

Fixed it!!
thanks for the input guys, never had it do that before, not sure why I had the die down so far but it was, never had that happen

 

[Doom2]

Your seating stem may not be long enough to seat the bullet shorter or your die may have a taper crimp, either of which may result in setting the die too low.

 

[MtnOak]

Why are you crimping anyway?? What rifle r ya shooting them in??

308 win, wanting to see what these 110 V-max do to coyotes
model 700 Remington varmint (heavy barrel)

 

[MtnOak]

This was really starting to drive me crazy, got 9 bullets to pull plus powder and primers to save.

 

[26Reload]

I did one just last nite...280ai...adjusting bullet depth....worse looking than yours...
You might be able to resize those necks enough to chamber them...
Pull them apart..anneal them...try running while still warm...
I haven't done the resize while warm...so let us know if it works.....