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Old 08-10-2015, 11:00 AM   #1
echo1's Avatar
Joined: Aug 2015
Posts: 65
Mossy key holes

Hi All,

My first rifle as a kid was a US property marked M44, that my dad got me out of the base surplus for 5 bucks.

In searching for a replacement (for 50 years) I've not run across one that was a good buy. Recently I came across a 144LSB at my LGS. While looking it over, I found where someone "etched" on the forearm "key holes CCI". You had to get the right light to see it.

That didn't make sense to me. Have any of you ever heard of such a thing? I have a few .22s, and I've not seen that happening.

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Old 08-10-2015, 11:19 AM   #2
RK600's Avatar
Joined: Jan 2013
From: Amboy, WA
Posts: 293
It's entirely possible. Some rifles do have issues with different ammo. This isn't a Mossberg but it just proves the point.

CLICK ME----->>>PMR-30 Ammo Recommendations Update | News | Kel-Tec

We've had a lot of questions come in regarding possible new ammunition recommendations in response to the updated barrel design. The overall list of recommended ammunition hasn't really changed, however there is something we feel is worth noting.
After extensive testing with various ammunition we have concluded that all remaining key-holing issues have been isolated to one particular brand and weight of ammunition. Unfortunately this seems to be the most common and available ammunition: CCI Maxi-Mag 40gr.
The 30gr and 50gr varieties of CCI shoot flawlessly, as do other brands of 30gr., 40gr., and 50gr. ammunition. For some reason, though, it seems that the 40gr. CCI Maxi-Mag in particular still has sporadic key-holing. At this point in time we have deemed it ammunition specific and recommend trying a different grain or brand of ammunition if your PMR-30 is still continuing to key-hole with an updated barrel.
This in no way means that all of your CCI Maxi-Mag 40gr. will key-hole; it just means we have experienced occasional key-holing with that particular ammunition and feel we should make everyone aware of it in the event you experience the same thing we have.
We'll be sure to keep you updated if we find out anything more!
As it stands, continue to steer clear of non-USA manufactured .22WMR rounds as they have a higher risk of case-rupturing due to inferior quality.
Thank you.
- See more at: PMR-30 Ammo Recommendations Update | News | Kel-Tec

Last edited by RK600; 08-10-2015 at 11:31 AM.
Old 08-10-2015, 04:13 PM   #3
echo1's Avatar
Joined: Aug 2015
Posts: 65
Thanks, never experienced anything like that in my .22s. PAX

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holes, key, mossy

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