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11/10/2015 8:36:07 PM EDT
Hello all.

I am wondering if Magtech commercial 223 is mildly corrosive???

I shoot quite a bit, all calibers, ammo, handloads, etc.

I have a cz527 in 223 that I shot on 2 recent occasions...Both times I didnt get a chance to clean until following day, then I noticed rust in the bore.

Weather had not been humid or hot..(OCT-NOV)....

I've never had this issue before except with old surplus in K98.....

Any similar thoughts or experiences? I have not shot this Magtech in any other firearm as yet.
11/10/2015 10:14:51 PM EDT
[#1]
Not in my experience.
11/10/2015 11:35:37 PM EDT
[#2]
My limited experience with Magtech has not shown any signs of corrosive primers.
All the Magtech I have shot has been with chromed barrel and chamber..Does your CZ have a chromed barrel?
But maybe they had a few batches manufactured using old primers..
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