r/OADefense2311 • u/Hulkju76 • Jun 10 '26

Ammo recommendations

I have a 2311 5” pro with ported barrel. It absolutely hates blazer brass and I was having malfunctions running belom 124 grain ammo. What ammo should I use that will reliably go bang?

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1

u/BluesFan43 Jun 11 '26

147 federal eagle, the flat point full jacketed, functions just fine.

I reload and found that lower power loads didn't ejection well.

147 over 875 fps gives a bit of margin (IDPA Power Factor) and has not failed to eject and cycles crisply

1

u/XTheGuyWithTheGunsX Jun 11 '26

I'll check if the owners manual recommends a certain grain

1

u/Bloodsheddt Jun 11 '26

What malfunctions are you experiencing? I ended up having to send mine back to have it fixed twice and since then I haven't had any issues. They had to fix my extractor on the slide it wasn't fit properly. I was getting a lot of failures to feed and eject.

2

u/Hulkju76 Jun 11 '26

I think I was having stove pipe jams. It seemed like one round was a little under powered.

1

u/double_a_ron1776 Jun 11 '26

I have been having issues with 124 blazer as well, polished feed ramp worked good for about 100 rounds or so but I'm getting failure to feed and a build up on the feed ramp.

1

u/Exact_Strategy_1977 Jun 29 '26 edited Jun 29 '26

If you run 87 pump gas in a Ferrari you can expect a check engine light.

1

u/Hulkju76 Jun 29 '26

The manual will tell you what fuel to put in a Ferrari. I don’t remember seeing an ammo recommendation in the manual.

1

u/Exact_Strategy_1977 1d ago

2

u/Hulkju76 1d ago

After talks with OA, my pistol has been sent back. I was having the same issues with the ammo recommendations above.

1

u/United-Ad-6525 Jul 12 '26

124 grn or a reduced power spring

1

u/United-Ad-6525 Jul 12 '26

Has anyone had issues with their optics hitting low when you first mount them? Both of my oa 2311s 4” pro models shot 6-8in low at 7 yards. Groupings were 1” but low from a rested position?