Another Spilt Case To Remember


PDA






parker51
February 7, 2013, 07:20 PM
I've been reloading close to 25 years and during this time I've had numerous split necks and even a few case head separations, but this is the first time I've had one split almost the length of the case from the should to the head. It wasn't a real hot load and believe it or not, the bullet actually grouped withing 1 1/2 inches from the other 4 in the 5 shot group. It is a once fired Privi Partizan case in 22-250. I was using 37.5 grs of H414. The max for this load is 40 grs. I suspect it was just a defective case as I have reloaded many Privi Partizan cases and not had any other problems like this. Anyone else ever have one split like this?

http://www.thehighroad.org/attachment.php?attachmentid=179285&stc=1&d=1360282735

http://www.thehighroad.org/attachment.php?attachmentid=179286&stc=1&d=1360282746

If you enjoyed reading about "Another Spilt Case To Remember" here in TheHighRoad.org archive, you'll LOVE our community. Come join TheHighRoad.org today for the full version!
243winxb
February 7, 2013, 07:58 PM
Thats a new one to me also.

BYJO4
February 7, 2013, 08:07 PM
I also tend to think it was a defective case.

c.latrans
February 7, 2013, 08:12 PM
That's a beaut. New one on me....I assume no damage to the rifle?

ReloaderFred
February 7, 2013, 09:31 PM
Yep. I've seen it in both .30-06 and .308, but different brands than yours. I've also seen some wierd splits in .223 brass.

It was probably a weak spot in the brass from the drawing process, strong enough for the first loading, but not the second.

Hope this helps.

Fred

blarby
February 7, 2013, 09:37 PM
Yep, I've had it in federal .308 AND .30-30

Also in 30 carbine.

Just a bad case- sucks though, dont it ? Only two firings.

gamestalker
February 7, 2013, 11:10 PM
Probably a deffective case. 1 in a million, or 1 in 10 million might have a flaw that would cause an unusual failure, I imagine.

GS

fguffey
February 8, 2013, 12:15 AM
http://www.turkmauser.com/ammo/mhbTurk.aspx

Defective? I have seen many splits, all with 8mm57 cases. The good news? I did not fire all of the 8mm57 ammo, I pulled the bullets and saved the powder, the cases were thin and brittle, reloading was not in the front, middle or back of their minds when the ammo was manufactured, they used Berdan primers. In my opinion 2,900 + was fast, then there are those generous chamber with a brittle case, the case can not expand without splitting, if the chamber was smaller and or the case body diameter larger splits would be unlikely.

The pull down cases ring like a bell-shaped like a 8mm57 case.

I could have saved a lot of time is the Hornady cam-Lock bullet puller worked, I spent more time repairing it than I did using it.

I formed the 8mm57 cases to 7mm57, out of 40 formed cases loaded with bullets and powder, all 40 of the case necks split. Not a problem, I have the RCBS collet bullet puller, no maintenance. I could have loaded the formed cases, went to the firing range and fired the same day (before the necks split) , I would not expect the split case problem to go away.

F. Guffey

StrawHat
February 8, 2013, 10:30 AM
I have had numerous split cases similar to that but in straight sided cartridges, 45-70, 38 Special, 45 long Colt,. So far I have not experieinced it with the 405 WCF and the 50-70 but I have not reloaded the casings as often as the others.

Yours splitting on the second firing, while annoying, would not upset me.

TenDriver
February 8, 2013, 10:48 AM
My friend firing surplus 8mm reported one to me like that last night. No damage to the rifle. If that brass is an issue it might be time for us to pull the remainder.

Kachok
February 8, 2013, 10:48 AM
That is a new one on me too. I use Prvi brass all the time and never had one do that, heck I have shot my 100 Prvi 6.5x55 for three years, they won't even shine anymore and it still holds up :) One thing you have to watch for with Prvi though is at leased in the case of my 6.5 Sweed and my 308 their brass is thicker then Remchester so it might cause an increase in pressure due to the reduction in case volume.

45lcshooter
February 8, 2013, 10:56 AM
Federal 30-30 are the worst for splitting shoulders for me.

Yea that does look like a defect case.

fguffey
February 8, 2013, 11:56 AM
‘Privi Partizan’ I do not have Privi Partizan cases. I have had 3 out of 10 8mm57 cases split when using foreign made ammo, at the time 70 rounds for $4.70 gave me no excuse for complaining. The stuff was old, some almost as old as me. I still have 400 + in boxes and or bandoleers, splitting was something I could count on, why? WHO KNOWS? The Shadow?

I looked at the rip in the side of the case and I would think split, then I thought of gas cutting, problem, I did not index the cases meaning I did not know if the rip looking split was on top, bottom or side as in the same place every time. Even now I do not have the curiosity or ambition to haul the 8mm57 ammo to the range and fire it with the corrosive primers.

Then there is shaped charges, again, who knows? Someone could load up the 8mm57 Mausers with ammo case splitting ammo and head off to the range, they could start by positioning the powder in the rear of the case against the primer then carefully lower the rifle to level and fire, If there is no split in the case after 20 founds have been fired they could repeat the test without raising the rifle to position the powder, they could chamber a round, shake the rifle to position the powder level in the case and then fire, not forgetting to index the case. If splits occur check to see if the splits appear on the bottom or on top.

Again, I form cases, old cases with head stamps DM, EW, SL, etc., and lake city, never a split case body from the same rile that shot the 8mm57 foreign ammo that split.

F. Guffey

4season
February 8, 2013, 08:21 PM
Federal 30-30 are the worst for splitting shoulders for me.

Yea that does look like a defect case.
First deer I ever shot was with 20 year old Federal 30-30. Split two places on the shoulder. Not a reload just a factory load in a Marlin 336.

If you enjoyed reading about "Another Spilt Case To Remember" here in TheHighRoad.org archive, you'll LOVE our community. Come join TheHighRoad.org today for the full version!