6mm BR Brass Life Problem

[captsurly]

I have recently purchased 100 pieces of Lapua 6mm BR brass. I have a .268 neck Krieger barrel and am shooting same on a Bat action. I'm shooting 33 grains on V V N135.
with a Bart's 68 gr Ultra bullet. The case necks are turned to 0.011. For some reason I am experiencing cracked necks after just 3 firings. My previous experience has been to be able to fire the brass 20 or more times before experiencing any cracked necks. Has anyone else had a recent similar experience with new Lapua brass. Any ideas on what could be causing this problem?

 

[dansig]

I am using even hotter loads of N-135 and I have loaded my Lapua cases about 17-20 times and no problems yet.

 

[BANG...WAC]

I bought a box of 100 last fall, 4 had split necks right out of the box. Second firing, 2 more split. Just ordered tempilaq 450 & 750 degree so i can try my hand at annealing.

 

[hedditch]

I have one box of 20 rds that I am going on my 32nd reloading with no problems so far. I anneal with my Benchsource. Try to do it after every firing.

 

[eddywitay]

I am having that same problem after one of two firings i am using 29.5 grains of target pushing 105 a-max at 2,700 fps that is not a ht load by any means may be a bad lot or something.