Ok ill agree it "should" but there are other other things we dont know about those with issues.
Golden bullet is a VERY defective and DIRTY ammo. Till you have shot other ammo i wouldnt rule out the ammo being the problem. Its alot easier and cheaper to try other ammo brands and types before you have to go threw all the trouble of sending a gun back. No one will return a firearm once the sale is over. So you HAVE to send it back to the manufacture.
This is from the manual:
"When the firearm leaves the factory, its metal parts are protected by a coat of very
adherent oil. This coating, especially inside of the barrel, must be removed before
using the firearm. The oil on the outside surfaces should also be removed when
the packing box has been open because the oil is very sticky and it easily retains
dust and other solid impurities from the air"
Was that done?
Also from the manual
"Load the magazine by inserting one cartridge at a time, pressing against the plastic
follower and rearwards until it is fixed between the lips of the magazine. Repeat
the operation until the magazine is full, or until the desired number of cartridges
have been loaded. The magazine should be loaded with .22 Long Firearm cartridges
only (Fig. 9). For best performance we recommend using Hi-Velocity
ammunition"
"With proper care, your Mossberg Intʼl.TM rifle will provide you with years of dependable
service. Your firearm should be inspected and cleaned after every 200 rounds
to ensure that it remains in good condition. However, unusually dusty, dirty, or
harsh weather conditions, or use of dirty ammunition which leaves significant powder
residue may necessitate more frequent cleaning. Clean your firearm as soon
as possible after use. This is especially important if your firearm has been exposed
to moisture"
Steel will rust quickly rust can cause issues in any gun.
The .22 round is a very finiky round its such a small round it can have a hard time with some auto loaders moving all that metal requires a decent amount of kick. Ive only had one larger give me a few hickups "hipoint"
I have 3 other guns i had issues with, walther SP22, sig mosquito, and a Chiappa 1911-22. They all had fidding issues, FTEs, jams. all .22LR they all worked themself out after about 200 rounds, the walther i had to send back and worked flawless till after the first cleaning. After i cleaned it i had issues. i was over tightening the barrel nut causing FTFs that was a tricky one to figure out took me months.
Chiappa cost me $250, the walther cost me $250, the sig cost me almost $400. Ide expect those to be trouble free specially the sig but they didnt. Im glad i stuck with them becasue i wouldnt sell any of them now. The Sig is my favorite .22 pistol i have.