What happens when you load too many times

With the low pressure cartridges such as 38 Special or 45 ACP I tend to use the cases until they start fraying at the edge. With the high pressure cartridges such as 9mm and 40 S&W I have always scrapped the brass after four reloads.
 
What pistol were those fired in, and what load?
These were shot out of a M&P 40 about one year old loaded with Hodgdon HS6 7.3 gr starting load I have a lot of once fired range brass that people are glad to give me at the range. After loading about five thousand rounds of 40's I guess that two splits are not that bad. I also load Sig357,9mm, and .223 with no failures at all
 
I tried my best to skim all the replies but there is so much BS mixed in my eyes kept blurring out. The only thing I can think of that you might check is if the chamber is out of spec or your sizing die is too tight. Over worked brass with split early.
 
I have had the same splits in factory ammo and reloads of 1 and 2 times from the major us brands. I believe it is due to a fault from the foundry that was not detected in making the cases. This type of fault as long as it does not extend past the pressure ring is of zero danger. Large chambers and small dies will cause more of them. Shoot till it fails in low pressure and till you feel unsafe in high pressure.
R D
 
All brass is not created equal. Some is thinner. I've had some 38 Spl. split after 1 or 2 mild reloadings, others will load 20 times. Some batches of brass just aren't up to snuff, manufacturers aren't really concerned with reloading life of their cases, at least that's my opinion. The cases that split early were Federal loaded ammo, purchased new, reloaded a couple times or less. Very unusual, as I've used their brass for several years without problems. So, even same brand isn't all the same. Lots are not all the same, nothing has changed on my end, guns or gear, FWIW.
 
Have you gus that use Ultrasonic and Wet tumblers ever read the ingredients or MSDS for the solutions sold by say Hornady?

It is Citric acid!

So all this hoopla about acid is nonsense.

Sure if you use a strong concentrate and leave it in there to long then you will have problems.

About 100 years ago my Mother and Her Mother used lemon juice (or vinegar) and salt (straigh up!) to clean the copper kettles and pans, Did not see to many of those get dissolved!:)

We cleaned pennies with it when they were real copper.

I keep saltwater (marine) fish corals and clams. The pumps get serious calcium build up. Vinegar is to slow and weak to clean them. I use a 10 parts water to 1 part muriatic (HCL) to clean them.. Also pour it the pool to lower pH and OMG we swim in it! So if you follow the directions and mix it correctly there is no problem.

Always add acid to water not the other way around. Wear safety glasses.
 
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