Anyone else having trouble with Rio / Royal Buck?

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NoirFan

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I recently tried this stuff out as a low cost training round and had a couple different types of failures with it:
  1. One out of every 15 rounds would fail to extract and jam an empty in the chamber.
  2. One out of every 20 rounds would get stuck on the lifter when I brought the slide back, and fail to chamber unless I jiggled the gun around. These were not short strokes because the round would be fully out of the mag and on the lifter when this happened.
My shooting buddy pointed out that the Rio shells are noticeably out of round, with an oval shaped cross section. I am traveling now but will post a pic when able.

The gun is a Mossberg 590A1 with fewer than 300 rounds through it. I did do a full teardown and cleaning session after this happened but I’m disinclined to use Royal Buck again. Anyone else have a similar experience?

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Yup. Ive had the same problem in an 870 and a 37. Also the same problem with cheap Winchester birdshot and Fiochi buckshot. No 'out of round' difficulties, but the thin brass plated steel bases dont contract like real brass after firing and that causes extraction failures.
 
I've shot grundles of Rio reduced-recoil buckshot (probably 1500+) and slugs (at least 500) through my Mossberg 500 in training without any failures of any kind.
 
I can speak to the reduced-load buckshot but I have use 100's of 6 & 7 1/2 for clay's and bird hunting and no problems.
 
The main problem i have with them is being a little bit too long, but i only run them in my saiga autoloader and a single shot, both with generous chambers. They seem to be a bit out of spec, but cheap to shoot.
 
i kinda dont want to point out something, but it seems like the mossberg pump users have the most issues with that ammo.

i shoot tons of the rio stuff, cheap #8 and expensive high brass #6, also that Royal Buck #4 buck and never have a problem with it, except in my very old, and very used Winchester 101, and its only the high brass. the brass expands and the weak ejector springs cant rip it out of the chamber. but thats the guns fault, not the ammo.

it fires nicely in a couple of superposeds, my Benelli M1, two different 7 shot Ithaca 37s, and a brutally used 1897.
 
I've shot probably 300 rounds of Rio buckshot through m 590A1 without any issues. Make sure you cycle the action firmly.
 
i have their buckshot as my home defense load and use their slugs, regular and low recoil on deer, bagged a 5 point this past season. in my maverick 88 they work great.
 
No problem with RIO. I shoot 20 ga high brass bird 7 1/2s in my A5. Works every time. If I could only find those " No Miss" shells my barber keeps talking about I'd be fine.
 
Slowly working my way through an ammo can of my remaining Rio shells. Today I was patterning a mix of their 00 and #4 buckshot loads. Out of 50 shells I got 3 failures to chamber (stuck on lifter) and two failures to extract. The two empties were stuck in the chamber and the only way to get them out was to dry-fire and then really yank the pump hard - just pumping with the slide released depressed wouldn’t do it.

Based on other people’s lack of issues with Rio I’m starting to think my gun just hates this brand for some reason.
 
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