Hornady 125 SST issues.

[rcmorgan540]

I got some of these and am not sure what the issue is. I am using 17.2 Grains of Lil Gun. I can't get these things close to the canteloure without blowing out the neck. Here are some photos. The one in the middle is a nosler. I fixed that issue. I was off on the OAL. Any ideas? I am fairly new to reloading, but have loaded thousands of 125 and 220 match kings. I have yet to have an issue with my brass. Any help would be greatly appreciated.


Thanks,
Casey

http://www.flickr.com/photos/66223295@N07/10596523334

http://www.flickr.com/photos/66223295@N07/10596549314

[randyrucker]

That is definitely an interesting issue. I would have to guess its a problem with how the brass was formed. I would try with some other source of brass or even some factory brass. It's almost like there is to much neck tension for the bullet going in. Wish I could help more. I've never seen that before.

[1slow01Z71]

Are you chamfering the case mouths? What dies are you using and are you setting them up to provide a roll crimp? What does your ID of the case mouth measure?

[talonxracer]

You could have an undersized expander ball creating too much neck tension causing the shoulders to crush or the crimp is starting during the insertion and crushing shoulders. That's all I can think of to check at the moment.

[rebel]

+ 1 on the Expander ball and +1 on the chamfer/ deburr. Make sure your sizing die is set up correctly, not sure if you have a gauge. I would chamfer first,easy, and try it. If that doesn't fix the prob, list what dies you have, maybe others have had the same troubles. You could also measure your expander ball and post that here for comparison with different makes.

[grrifles]

It looks to me that the seating die is crimping the brass before bullet being seated. Take a empty brass and put it in the press and see if the die is contacting the brass. If it is screw out the die until it does't then readjust the seating stem.


Chris

[Tim Bogle]

It looks to me that the seating die is crimping the brass before bullet being seated. Take a empty brass and put it in the press and see if the die is contacting the brass. If it is screw out the die until it does't then readjust the seating stem.


Chris

I bet this fixes your problem.

[rebel]

It looks to me that the seating die is crimping the brass before bullet being seated. Take a empty brass and put it in the press and see if the die is contacting the brass. If it is screw out the die until it does't then readjust the seating stem.


Chris

Sorry rc, when I said make sure your sizing die was set up correctly, I should have explained it like this. My bad. Thanks guys.

[Magnum Mike]

It looks to me that the seating die is crimping the brass before bullet being seated. Take a empty brass and put it in the press and see if the die is contacting the brass. If it is screw out the die until it does't then readjust the seating stem.


Chris

That's what it looks like to me...

[pvanwagner]

I've seen this before when I forgot to trim the brass and it connects when seating the bullets. Did you check and trim the brass?