What a Difference a Case Makes!

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  • Last Post 3 weeks ago
Eutectic posted this 3 weeks ago

Brazilian ammunition was being used for training and qualification. I picked up over 1000 once fired CBC head stamp cases.

I decided to load a 100 to test before I loaded the entire lot.
The first clue was widely variable primer seating force.
The second was sizing in the final Lee factory size die.
None of the Remington control cases touched the Lee die.
Most of the CBC cases were sized, some were heavily sized.
The bullet diameter was varied by the extremely variable wall thickness.
The result on the targets is self-explanatory.
Steve   

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4and1 posted this 3 weeks ago

Once fired brass can be good, or awful. Some of it depends on what it was fired in. Military guns have a wide range of standards. To the military, any military, is that it goes off, it is within accuracy tolerance, and it ejects. The military contracts out ammo manufacturing too, with similar wide expectations. And the brass is made with no expectation of it being reloaded. It's a crap shoot.

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BigMan54 posted this 3 weeks ago

Friend bought a Sig PE-57 back in 1989 before the CA "assault" gun ban. 

What it did to that Beautiful NORMA brass was a crime, Twice as bad as an HK 91 and 10 times the cost. Got case head separation on the 2nd reload. Tried every trick I knew. Sold it in AZ for half again as much as he paid for it.   

Long time Caster/Reloader, Getting back into it after almost 10yrs. Life Member NRA 40+yrs, Life S.A.S.S. #375. Does this mean a description of me as a fumble-fingered knuckle-draggin' baboon. I also drool in my sleep. I firmly believe that true happiness is a warm gun. Did I mention how much I HATE auto-correct on this blasted tablet.

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RicinYakima posted this 3 weeks ago

Loaded some  45ACP today, but sorted out all the CBC and European, kept the WW & RP. Sometimes it just isn't worth the hassle of dealing with it.

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JeffinNZ posted this 3 weeks ago

I hear you.  I have two difference batches of Bertram .310 Cadet brass.  Wall thickness in the first lot is 11-12 thou.  Second batch 9-10 thou.  That difference is more than enough to cause my Cadet to have MAJOR fits.

Cheers from New Zealand

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Ken Campbell Iowa posted this 3 weeks ago

Eutectic... actually the groups are about the same size ... so how can you think one load is better ?

Ken Smirking 

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Ken Campbell Iowa posted this 3 weeks ago

kinda along these lines ...i just rebarreled a friends 25-06 ... testing found that i couldn't chamber his old brass from his old barrel  ... no biggie ... rcbs 25-06 full length die ? .. nope ... ok, my old 30-06 Herters FL sizer ?... nope ...  ok, Lyman 25-06 FL die ? ... Bingo ! ...  but made my Lee Classic nearly pull the bolts through it's metal plate attached to my workbench ...  anybody remember those drive-in/drive-out Lyman sizing bodies ?

morals: 

( 1 ) you just never know what yer gonna get ...

(2 ) you can't have too many loading gadgets ...

ken the gadget collector

Edit .. btw, my greasy bullet lube with Moly made it possible to size the OS brass ... a teensy smear ...

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Squid Boy posted this 3 weeks ago

They are the same size but one is much better. What is the cartridge? Did you weigh a sampling of the cases? Chronograph the velocities? I wonder what the ES and SD would be between the two. Now just figure out what caused those few fliers and you are all set. Squid

"Squid Pro Quo"

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max503 posted this 3 weeks ago

Loaded some  45ACP today, but sorted out all the CBC and European, kept the WW & RP. Sometimes it just isn't worth the hassle of dealing with it.

 

European 45 acp?  Just seems odd.

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Eutectic posted this 3 weeks ago

The fliers were caused by the Bum behind the Gun. I did not bring my good rest, used a rubber brick at the range. No velocities, this was a fun shoot day. 

They were 38 Special standard velocity Accurate 158 RNFP.  I can get the gory details later, I am traveling this week. 

Really not important and I am not going to bother weighing the cases.

Steve

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Squid Boy posted this 3 weeks ago

Eutectic, don't write that off as unimportant. I was surprised that it was with a 38 Special case. Very interesting. Thanks, Squid

"Squid Pro Quo"

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