I was seating my bullets and had a case that crushed on me.

I was using new Hornady brass full length resized with hornady dies. The charge was not hitting the bottom of the bullet and I did chamfer the case neck.
I noticed that trying to do a roll crimp would also bulge the cases. is the 375 ruger design bad so that it does this or, would it be the Hornady brass or hornady dies.
I really wasn't applying much pressure to colaps this case and I've never had this issue with any other caliber's.
Any suggestions?

I see you're using an accubond which is a boattail and you say you're chamfering the case mouth ID.....this just shouldn't happen!

Is this happening to a lot of cases or only this one?....it seems to be a flaw in the case.....maybe someone else can shed some light here

BTW....say hi to Paul Berens there in Chaska

I've got some 223 and 308 cases that look exactly like that. It's rare, but I get one every now and then. I'm also using hornady dies, but not brass.

quote:

I'm also using hornady dies

Not sure how dies can cause this but I've had trouble with Hornady dies hanging up on seating too.....

you may have you seater adjusted to high and the die too low. seems like a pretty good indent from the seater plug. check the expansion of the neck. is this a new die. it may be sizing the neck too much.
Dave

Mic your bullet and mic your expander ball. If the difference is too great....

Looks like the sleeve on the seating die failed to slide up into the body-never did care for Hornady dies.

a new wildcat has been born

I think the first thing I might do is buy some RCBS or Redding dies to see if that makes a difference. I wanted to get a set with a neck sizer anyways. From the looks of it the hornady dies obviously do not support the sides of the case if it allowed it to roll in and buldge that much. This is the first time I'v ever had this problem and the first time I've ever used hornady dies.
It turned the die down on the case till it hit and backed off 1 full turn. This was probable the 20 cartridge I loaded in the set. Crimping is not possible without bulging the case either.
Either bad dies, or the Hornady brass is too thick in the neck, or both. I guess it's process of elimination.

quote:

Originally posted by butchloc:
a new wildcat has been born

yup....the all new .375 Booger!

I had exactly the same problem when loading new Hornady .375 brass, and once I had SEVERELY chamfered the inside of the case mouth, the problem stopped. I FLsized the cases and then chamfered them so you could easily see the lead-in for the bullet. No problems since. Maybe a little dry lube inside the case mouth or graphite on the bullets would also help.

Cheers,
TheKiwi.

quote:

Originally posted by vapodog:

quote:

Originally posted by butchloc:
a new wildcat has been born

yup....the all new .375 Booger!

The new 375 Ruger-I
not Improved, but Inverted

I posted on this exact thing a while ago. I believe this is an artifact of the inside dimensions of the new Hornady dies being larger than the case dimensions. Apparently it is easier for the case to upset than to impose a crimp. I CANNOT get this to go away no matter what I do. I have tried heavy chamfering, removing the bullet seater from the die, anealing the case neck, anf nothing helps. I am pretty sure crimping is not possible with the Horndady New Dimension die and the 375 Ruger. Crimping would be nice too as I have tried shooting my gun with a full magazine and with full house loads the bullets do move in the case necks quite noticeably. So far this is the only issue I have had and overall and very pleased after about 200 rounds.

Matt

good thing I bought some RCBS dies to replace the crappy hornady ones I have. I have to shoot the ammo I already loaded though before I can try these new dies. I did go back to the rounds I didn't dare try to crimp with the Hornady dies and crimped them easily with the RCBS die

looks like you are trying to crimp and have the seater plug too high.. i would have thought the ruger shoulder was steep enough to prevent this.

do this..
back the die out
back the seater WAY out
put an empty in the shell holder
you should be able to run all the way up.
turn the die down to where there is just a TOUCH of pressure
back off 1/2 turn
set lock ring

now, setup your seater dummy -- put a bullet in, and up/down the ram, adjusting your seater, until your OAL is right

that should clear up your problem for THAT

next, order a seater/crimper and set it up to crimp as another step.

Everything Jeffeosso says to do is correct. For crimping, which is a must for cartridges like the .375's and larger that produce a lot of recoil, use a Lee Factory Crimp Die in a separate, final reloading step. Lee currently doesn't make a crimp die for the .375 Ruger, but if you go on their website, they explain how to custom order one in any caliber you desire.