Help deformed bullet

[loopy]

Hello,
So I've got an issue that's stumped me and a fellow reloader that I'm hoping some one can help me out with. I have a Hornady LNL press and I am using rcbs dies. In this photo I'm using the 9mm setup, but I also have a similar deformity when loading 45ACP. What's causing this to happen?! I'm using the rounded looking bullet seater for both plugs since kits only came with this round plug and one that looks like it's for hollow point....
The left side is the finish product the right bullet is the brass belled and bullet fitted for the final process...

Sent from my XT1254 using Tapatalk

[Carcassonne]

my guess is the seater or crimper is doing that.


.

['ol shooter]

Using a flat seating stem would be my first thought.

[Revoman]

It doesn't take that much pressure to seat a bullet.
That amount of deformity looks like either the bullet is larger than specification or the case is smaller than specification, or the wrong caliber in either one (but I don't see a bulge either way), or possibly too much powder in the case.
Not saying that is it, but I have never seen a bullet deform like that with such light seating pressure needed.
The cases also appear to be tapered before the final taper crimp, but that could just be an illusion from the photo.
You might try a larger bell before bullet seating.
Sorry, but I do not have a definitive answer just things to check.

[Lead Waster]

My guess is that you have enough powder in the case that the bullet is touching it and trying to compress it, but it can't so the top of the bullet deforms.

Take your calipers and using the "tail" part, measure where the powder level is, and see if that, plus your bullet length is shorter than what you thinkg you OAL should be.. YOu might be squashing everything.

[boomer135]

Measure you bullet width, are you using .355 or larger .356? How much pressure do you feel on the seating die? Bullet should go in easy. The most pressure you should feel is when decapping/resize.

Also what COAL are you seating? Looks a hair long IMO.

[loopy]

The bullet width is .355, my COAL is 1.160.

I'll Check my powder in my case when I get home and i'll measure my bullet length to see if maybe that's it.

I'll try resetting the die and seating plug, maybe I'm just set it up wrong, Ill try setting the die how I saw it on a RCBS video i found a little bit ago.

Also I'm not using the flat seating stem.

[9mmepiphany]

When you set up your die, try backing out the seating die so that it doesn't crimp at all. See it it is prematurely crimping.

It takes quite a bit of force to deform a bullet like that. That is one of the reasons I change from Xtreme bullets to RMR...the increased hardness of the core and thickness of the plating

[Paseclipse]

Are the bullets X-treme 115 gr RN?

I get the same thing with my RCBS dies on my progressive. I figured the lead X-treme uses is softer lead or something because this doesn't happen to other bullets when I'm seating them.

I tried belling the case mouth more and reducing the crimp and it still didn't fix the problem.

They still shoot fine though.

[jericho89]

that looks like one hell of a crimp, I would suspect that it is crimping too early and you need to adjust your die out a little. i f hat is the case then you are trying to seat the bullet against an ever increasing crimp.

[loopy]

Thanks guys for the help, I ended making the bell just a little larger, and reset my crimp/seat die. Thus correcting the issue I was having that completely distorted the bullet. My bullets just get a very light push on the tip I feel it's hardly noticeable unless you sit and compare it to a new projectile.

[stilly]

Hello,
So I've got an issue that's stumped me and a fellow reloader that I'm hoping some one can help me out with. I have a Hornady LNL press and I am using rcbs dies. In this photo I'm using the 9mm setup, but I also have a similar deformity when loading 45ACP. What's causing this to happen?! I'm using the rounded looking bullet seater for both plugs since kits only came with this round plug and one that looks like it's for hollow point....
The left side is the finish product the right bullet is the brass belled and bullet fitted for the final process...

Sent from my XT1254 using Tapatalk

I have a Dillon seating die and it does a similar effect to my 105g SWC for the 9mm. You should consider modifying your seater or sending the seater with a bullet or two in to RCBS- OR switch to the Lee seater. Lee did not seem to do that to any of my 9mm, but Lee will allow you to send in your seater along with some bullets and they will hollow it out a bit more. They did that with my .45 ACP seater so that now it will seat the Dardas 150gr SWC better for the .45 acp... And it worked well too.

[fguffey]

I am sure everything happened as described but to distort a bullet that much when seating and or crimping would have crushed the case. The case simply would not have been able to support that much pressure.

The seating die does not have case body support.

F. Guffey