Sig Mosquito jam jam jam

[toby77]

Been having my mosquito for sometime now, after about 800 rounds down range, failure to eject/feed has became something i'm a little used to unless i'm shooting the more expensive CCI mini mags, but they're just too over priced so most of the time I use the Federal 550 rounds value packs.

Every clip or two I got a failure to eject where the bullet case sits inside the chamber like the slide never racked back, or a failure to feed -- a empty chamber. Again, I have pretty much zero problem while using the CCI mini mags.

Is this something anyone else had experienced? Or I should steer away from the Federal bulk pack now.

[rogervzv]

The Mosquito is known for being picky about ammunition and not liking bulk ammo.

[boyfalldown]

Mine does the same with federal. Give CCI blazer a try. It's
Just as inexpensive as federal, but my mosquito loves it. The
Only downside is lead fouling. Somewhere around 500 rounds I'll
notice accuracy falling off a bit, so I'll pull a boresnake through
and all is well for the next 500 rounds. After switching to blazer
my failure rate has become 1-2 per thousand rounds.

[chucksolo69]

Yep, I went to the range with my cousin who recently bought a Mosquito on Saturday. He had called me and asked me what kind of ammo he should buy and I gold him CCI Mini Mags. Typically, he got the Winchester 550 bulk ammo at Wal-Mart; he is the "thrifty" sort. And, typically the results were that the gun had failures to feed, or fire or eject on 3-4 rounds of EVERY magazine full. Curiously, it worked superbly with the 3 boxes of Remington Thunderbold RNL cartridges I brought for my Browning 1911 .22 A1; my Browning on the other hand, ate the Winchesters and the Thunderbolts with no problems other than I had 2 rounds of the Winchester bulk that refused to fire, in my Browning and in my GSG-5. I am of the opinion that Winchester bulk stuff is pretty badly made.

[theduece]

I don't own a mosquito but do own the walther and a few other .22's. Almost all of them tend to be picky about the ammo. Generally they will run well on cci bulk. Give it a shot...lol pun intended.

I also experience >1-2 per 1k ftf,fte with the CCI blazer bulk

[yelohamr]

I started out with CCI, but for the past couple of years I shoot Fiocchi, and Aquila SSS 60 grain, in my Mosquito. Also, polishing the ramp will help a lot.

[toby77]

Mine does the same with federal. Give CCI blazer a try. It's
Just as inexpensive as federal, but my mosquito loves it. The
Only downside is lead fouling. Somewhere around 500 rounds I'll
notice accuracy falling off a bit, so I'll pull a boresnake through
and all is well for the next 500 rounds. After switching to blazer
my failure rate has become 1-2 per thousand rounds.

I don't own a mosquito but do own the walther and a few other .22's. Almost all of them tend to be picky about the ammo. Generally they will run well on cci bulk. Give it a shot...lol pun intended.

I also experience >1-2 per 1k ftf,fte with the CCI blazer bulk

Will try the CCI blazer as suggested, thanks guys

[toby77]

Yep, I went to the range with my cousin who recently bought a Mosquito on Saturday. He had called me and asked me what kind of ammo he should buy and I gold him CCI Mini Mags. Typically, he got the Winchester 550 bulk ammo at Wal-Mart; he is the "thrifty" sort. And, typically the results were that the gun had failures to feed, or fire or eject on 3-4 rounds of EVERY magazine full. Curiously, it worked superbly with the 3 boxes of Remington Thunderbold RNL cartridges I brought for my Browning 1911 .22 A1; my Browning on the other hand, ate the Winchesters and the Thunderbolts with no problems other than I had 2 rounds of the Winchester bulk that refused to fire, in my Browning and in my GSG-5. I am of the opinion that Winchester bulk stuff is pretty badly made.

I did shot a few of those Winchester bulk packs from walmart. Horrible horrible ammo, way worse than the federal i'm using, jams like a motherfu#$%* in my mosquito.

[Eat Dirt]

Maybe this is why we're always seeing a Sig Mosquito in the Firearms For sale section

[mkane]

Slow down the shooting a bit, try and hit your target, the pistol will jam less. Or use mini-mags.

[Dirtbikindad393]

The Mosquito comes with two recoil springs which one is installed in yours? It makes a difference. Please let us know if you have changed the spring and which one you use with which ammo. With the correct spring the gun will work flawlessly.

[srvgtrfan]

+1 or 2 on the CCI Blazers! Mine loves them. No problems at all using these.

[Knife Edge]

Bought mine some time back and hardly had any issues to speak of with the CCI mini-mags. After 2 packs of those (200) I tried the Federal bulk pack with great luck. I would get a jam every fifth or six magazine (great opportunity to run a clearing drill) but this has cleared up with time. The gun currently has 4,000 rounds through it and runs like a swiss watch on Federal bulk. I do use liberal amounts of SLIP 2000.

[JMP]

I recently started using federal instead of CCI minimag in my Mosquito ever since Walmart hasn't had CCI minimag readily available--I ain't spending $.10 a round at a gun shop for 22. I found that neither recoil spring works well with federal, but changing around lubricants got federal (blue box) working reasonably well. I'll give CCI blazer a shot--good tip. I actually love it when it doesn't feed because then I know I am shooting well if my sights don't move when pull the trigger. The CCI stinger is fun to shoot with your heavier recoil spring because you get muzzle flash.

[BLUE&GOLD]

try remington golden bullets. Those work like a charm for my mosquito. It's jam city if i feed my mosquito winchester bulk packs. I haven't tried federal bulk, but i'm assuming ill get the same horrible results