I have a used Sig P220 inbound.

Are the factory (not ACt) 8-round magazines equally reliable to their factory 7-round counterparts?

Thanks,
Divil

quote:

Originally posted by divil:
I have a used Sig P220 inbound.

Are the factory (not ACt) 8-round magazines equally reliable to their factory 7-round counterparts?

Thanks,
Divil

Yes.

Yes, I have 8 rounders for most of my 220's and they function perfectly.

quote:

Originally posted by divil:
Are the factory (not ACt) 8-round magazines equally reliable to their factory 7-round counterparts?

Yes.

I have to agree with the above posters as well that the 8 rounders are reliable in the P220.
It seems that Sig and its counterparts supplying the magazines, hit upon a technical breakthrough that the 1911 platform still struggles with.

quote:

Originally posted by Cousin Vinnie:
It seems that Sig and its counterparts supplying the magazines, hit upon a technical breakthrough that the 1911 platform still struggles with.

I think the breakthrough is that the 8 round 220 is not flush fit. Many (not all) 8 round 1911 mags are stuffing 8 into a flush length 7 round tube.

+1 for yes... my factory 8 rounders have never failed me through thousands of rounds over years of use, carry, quals, schools. etc.,

The most current 8 round mags are the most reliable, next would be the older 7 rnd mags, then the not as recent 8 round mags. I believe, according to my Masad Ayoob Sig Sauer book, the only P220 mags that caused any problems at all were some of the very early 8 round mags.

Random interweb picture, most current P220 8 rnd mag is the one on the right, with the little pressed in notch on the side, upper, rear by the "2". The other 2 mags in this picture do not have the notch but are fairly recent production I believe.

quote:

Originally posted by Cousin Vinnie:
I have to agree with the above posters as well that the 8 rounders are reliable in the P220.
It seems that Sig and its counterparts supplying the magazines, hit upon a technical breakthrough that the 1911 platform still struggles with.

All of my 8 round 1911 magazines work 100%???

The first factory P220 magazines capable of holding eight rounds accomplished that feat by means of a different follower while using the same seven round tubes and flush fit metal floor plates. Those magazines were problematic if fully loaded with eight rounds, and were evidently offered for only a short time. The current eight round mags with extended plastic floor plates work fine.

I have a 220 made in the early 1990s. Was reliable with the 8 round and the 10 round magazines.

quote:

Originally posted by jimmy123x:

quote:

Originally posted by Cousin Vinnie:
I have to agree with the above posters as well that the 8 rounders are reliable in the P220.
It seems that Sig and its counterparts supplying the magazines, hit upon a technical breakthrough that the 1911 platform still struggles with.

All of my 8 round 1911 magazines work 100%???

As do mine. I think I only own 1 or 2 7rd mags and they have never been in the gun.
I don't have experience with a bunch of brands, I have a pile of Wilson 47Ds.

I didn't even know there was a 7rd mag for a 220 until I saw one for sale. ALL mine are 8 rders and they too have been 100%.

Keep in mind, up until this point, we have been referring to Sig Sauer factory P220 mags. I believe you could infer the same for any mags from Mecgar (since they are the ones that make Sig factory mags).

I have very little experience with magazines from other manufacturers made to be used in Sig P220 pistols. I personally stay away from them.

Regarding my question: It looks the the overwheming consensus is yes. Thanks for your replies.

I am glad all but the early 8-round flush 220 mags seem to enjoy a reliable reputation. My inbound P220 will come with 3 7-rounders but it looks like I can gradually ( as the budget allows) acquire 8-round magazines in the present form without functional worry.

In my .45 1911's I only use flush fitting 7-round magazines or 8-rounders that are in a slightly longer tube. It seems like the same principle will apply to my 220 magazines.

Thanks again,

Divil

I know the the OP stated non-ACT 8 rounders, but those are all I've ever used. Can't fault them at all. 100% reliable and high quality.