Suppressors Problem with my M9 vertec

[Alaskaman11]

Just see if anyone else as had this problem, I was at the range today, I was shooting reloads, 4 grns of unique behind a 124 ball. It seems like the slide slowed way down. I had stove pipes, fail to feeds, you name it. I was shooting old brass, it was left there. Any ideas? Most of the times M9 are like tops and the energizer bunny. I did have just a little bit of Rem oil on it. Ideas?

 

[HotIce]

Re: Problem with my M9 vertec

Assuming it works fine with other loads or commercial ammo, ...
Stale powder?
Wrong measure?

 

[ORD]

Re: Problem with my M9 vertec

That seems like a VERY LIGHT LOAD to me at first glance. 4.1gr was the min. Unique load in my manual and only produced MV of around 900fps or so IIRC. That light a load may account for the cycling problems you are getting, especially if the pistol is newer or has a heavy recoil spring.

My accuracy load with Unique is 5.0gr of Unique at a MV of 1050fps (4.4-4.5" barreled pistols). It runs great through various 9mm pistols, including a Beretta 92FS, HK USPs and P7s and others.

Also, do you have a go/no-go or max cartridge gauge? It is possible that your reloads could be a little out of spec from resizing, seating, etc. and one of these gauges will give you a good idea if that is the case.

 

[Alaskaman11]

Re: Problem with my M9 vertec

It's funny that you say light load, it's on the bottom end of the scale and my book is from 1974. I'll get newer data and try that out

 

[Big_Daddy]

Re: Problem with my M9 vertec

I would say the same, load looks a little too light to me. Alliant lists data on there website so you can check there or a newer manual. The Alliant site looks like it only lists max data which is 5.8g for a 124g Gold Dot. You can reference it here: Alliant 9mm 124g Gold Dot Loads