ABM brass

I have some in 300 WM also, I've used it without any problems. I heard it was made by ADG, but cannot confirm.
 
I have a little ABM as well. As @Darryke suggested, I appears to be similar to the Norma brass that I use predominately in 300 WM. I have some ADG brass as well and it appears heavier/ thicker. Norma was my go to brass before Lapua and ADG started selling it to the public in the last few years. You should be good to go with the ABM stamp brass as long as you aren't mixing with other mfg brass. (Assuming you want consistency)
 
I have a little ABM as well. As @Darryke suggested, I appears to be similar to the Norma brass that I use predominately in 300 WM. I have some ADG brass as well and it appears heavier/ thicker. Norma was my go to brass before Lapua and ADG started selling it to the public in the last few years. You should be good to go with the ABM stamp brass as long as you aren't mixing with other mfg brass. (Assuming you want consistency)
No sir we all shoot same lot# in everything
 
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