Federal 45-Auto Aluminum case note?

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September 28, 2020, 04:26 PM
Federal 45-Auto Aluminum case note?
Scored some 45 for my new SAR-K2. It's Federal-230gr-FMJ RN.

Noticed the following on the box:
"Do not use in firearms with ported barrels or ported recoil compensators"

Any ideas on the reason(s)?

"No matter where you go - there you are"
September 29, 2020, 09:34 AM
The bullets are plated which is thin and may be peeled off by the ports. This may result in spittng bits to the sides.
October 06, 2020, 01:42 PM
Sintered/Encapsulated-powdered metal compressed in a die & then plated.

Prevents ricochets.

Too tight of a bore w/ a device at the muzzle is asking for disaster.

Favor Center,Mass.
October 06, 2020, 02:41 PM
Many moons ago I shot some Blazer aluminum .357 in a Rossi 92. 1st shot the case split in the chamber and I had to get a rod and back it out in shards 2nd shot did the same. Looked at the box and it specifically stated NOT to use in rifles. I don't know if it is still the case but I read the boxes more thoroughly now.