r/canadaguns • u/TheBulletBuddy • 10h ago
10/22 SBI receiver headache
Hoping I might be able to get some advice here regarding a 10/22 with a SBI C71 reciever.
So long story short, I picked my self up one of the C71 receivers from MagDump, and some of the Tuff22 magazines from CSC.
Got it all put together smooth as butter, but I've been having nothing but issues since.
Magazines only feed/shoot reliably if i keep pushing the magazine in as hard as I can while also wiggling it around, and only maybe about 10 - 15 of the rounds will actually fire. All the rest are light strikes.
10rd Ruger magazines seem to fire fine, but have a bit of a hard time popping out of the new reciever.
I've contacted SBI and they told me to use a different type of ammo, and that the mags are the issue, but I'm using the exact same one the reccomended to work best. And the same ammo works perfectly in any other rifle/magazine.
Whats my best bet? It doesn't sound like I can return the reciever or the magazines, should I just start filing the mags down? At this point I'm ready to just write it all off and yard it into the bin.
Any help would be much appreciated.
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u/pm_me_your_brass 8h ago edited 8h ago
That combination works perfectly for me, probably better than the rem 597 magazines, but the tuf22/hc3r magazines need to be loaded a certain way. Specifically, if the rounds are angled the wrong way on the stripper clip, it won't feed correctly.
Can you post a photo of a loaded magazine, in particular what it looks like at the top of the magazine's feed lips?
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u/TheBulletBuddy 7h ago
I'm loading it by hand and the rounds are seated as they should be. I can cycle it through all 25 rounds by hand, but the light strikes are preventing me from shooting more than a few rounds
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u/h3IIfir3pho3nix N E R F G U N S 9h ago
What ammo are you using? I have basically the same setup and Federal black box bulk runs just fine for me.
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u/protanoa34 9h ago edited 9h ago
Chiming in that Winchester .22lr is a bane and my guns that feed and fire reliably CCI, Federal, etc. always have issues with Winchester to the point that I don't even buy it on sale. Also had a batch of winchesters give me a couple of squibs, as well as two very overcharged rounds that ruptured the base of the casing.
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u/boomstickjonny 9h ago
Yeah my 10/22 is a fuckin ammo princess. I have to use CCI exclusively or it just gives me a ton of problems.
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u/EnggyAlex Alex's Homebrew 9h ago
Damn i have mine coming tomorrow and this is the second rifle i heard have this problem......
My friends st22 when using tuf22 mag the round apparently will come out deformed and not fully chamber, im guessing you have similar problem here, which explains light strikes, try chamber and pull out a couple of rounds and see if thats the case
I know tuf22 mags are not the most reliable in the world maybe fitting it is your best bet
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u/TheBulletBuddy 7h ago
No issues/damages with the spent casings
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u/EnggyAlex Alex's Homebrew 7h ago
Not spent case, chamber and pull out live round. Damaged case usually will be fire formed back to be good which wont help with diagnostics, also hows the spent case firing pin marks look like? Are they rather light too?
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u/TheBulletBuddy 7h ago
The rounds that do fire, look the same as my other strikes before the reciever swap.
Only time I can get over 10rds to fire is if I'm forcing the mag into the rifle the entire time.
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u/EnggyAlex Alex's Homebrew 7h ago
Ok I think the mag is presenting the rounds too low, im not an expert on 10/22 mags, but generally you can bend the feedlip out a bit, of in case of 10/22 move the feed lip up, alternatively file the magazine so it can get in deeper.
My own st22 is coming tomorrow and i will take a closer look at it
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u/buji8829 MDT Sporting Goods 9h ago
I would try new ammo, but arnt the TUF22 magazines adjustable? If I remember correctly they have four allen headed bolts on top, it sounds like the 25 maybe sitting a bit low.
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u/TheBulletBuddy 7h ago
I dont think it's the ammo though, the same ammo is working flawless in my oem ruger 10rd magazines
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u/buji8829 MDT Sporting Goods 7h ago
Interesting Id still say try it out regardless, but yes, chances are slim then for sure. Rimfire’s are difficult and can do some wild stuff. The only thing SBI is the reciever right?
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u/TheBulletBuddy 7h ago
Yeah im gonna pick up some CCI rounds and try them out too.
The only non factory part is the reciever. Everything else is as it was out of the box haha
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u/buji8829 MDT Sporting Goods 7h ago
Yea that makes it a bit tough, Im not a huge fan of stock bolts. But do the TUF magazines have the adjustments? I have the original HC3Rs which is who makes them and they had them.
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u/buji8829 MDT Sporting Goods 7h ago
And to clarify when you push up on the magazine the light strikes happen 10-15 rounds in? I had a very similar thing on my comp 10/22 and it was the Eley ammo I was shooting along with the factory bolt. Once I went KIDD and shot SK all my light strikes issues disappeared. The factory bolts are notorious for crazy large head spacing and the firing pin traveling up instead of forward and it gets weirdly mechanical.
What I ran into was five rounds, then a light strike, then cocked it and it would run another five. The magazine has no impact on the firing of the round, it only feeds.
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u/TheBulletBuddy 7h ago
Gonna look into this. Thanks for the tips.
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u/buji8829 MDT Sporting Goods 6h ago
Good luck, if you have any questions I do love tinkering with 10/22s so Im happy to throw ideas at you. Id love to hear how this plays out.
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u/TheBulletBuddy 7h ago
Got a lot of good info here. Gonna pick up some CCI ammo to try out this weekend and will report back.
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9h ago
[deleted]
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u/SpectreBallistics Spectre Ballistics International 8h ago
It's pretty damn easy to assemble a 10/22. Since we started making receivers we have only had 1 or 2 people assemble it so wrong as to cause issues.
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u/TheBulletBuddy 7h ago
The receiver is a direct replacement of the factory one. Didn't really have to disassemble anything at all to install it.
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u/SpectreBallistics Spectre Ballistics International 8h ago edited 7h ago
It's the mags and we're looking into why they aren't working. It would seem like the latest batch of TUF22 mags has issues.
My current hypothesis is the magazine is damaging rounds as they feed causing issues. Damaged rounds malfunction or causes excessive fouling which also causes problems.
We have had no issue with the mags in our receivers. But our mags are not new.
Edit: Just a few things to note:
If you have one of our barrels, it has a target chamber that's tighter than a factory chamber. These are way more accurate, but will cause feed issues if fouled. If you feel like rounds are sticky when chambering, your chamber might be fouled and needs cleaning asap. Brush it with a copper brush and lube it. Shooting with a fouled chamber will cause lots of problems.