Learned a lesson

[Marauder2003]

Last week I acquired a FN 503 9mm. I already have a 502 and 509. Going to collect the whole series.

Took some MBI and S&B ammo to the range. Had nothing but problems. Failure to feed and extract. Even had 1 expended shell flip itself in the ejection port. Went home and cleaned the gun. Called FN. They suggested cleaning the gun and to use 124 grain ammo. Bought some 124 grain Remington military training ammo. Went to range again. Still had problems. Then noticed the MBI is 124 grain. So much for the FN support idea. Cleaned gun again. Back to range with the MBI and 115 grain S&B. Only had 1 failure to extract. For the last two magazines I alternated rounds. S&B, MBI, S&B, etc. Only failure occurred on an S&B round. I am willing to chalk it up to a limp wrist.

Lessons learned? Clean the gun before first use and some guns do have a break in period.

[naz]

Lessons learned? Clean the gun before first use and some guns do have a break in period.

Definitely makes sense to oil the gun before first use

Also, check the velocity of the ammo. It?s also possible the ammo was too weak to properly cycle the gun

[BigPimping]

I came awfully close to buying an FN 9 mm. However, parts did not exist. I even went to two different gunsmiths to ask about them. Ivan called FN and they referred me to Midwest gun parts. That was no help. FN told me they might have some parts back in the shop and that they would check. It really bummed me out because this was a bucket list firearm.

[sealocan]

I know this has no bearing on your current issues or FNs pistols that aren't of this model and generation but this one video made me consider that they might have not been doing all the testing and evaluation of
their different pistol designs in different extreme of climates that we have over here, and maybe did all their testing in Belgium at their home location.

... It's the hot / melting "squishy squishy squishy" magwell if you haven't seen the video before...

https://youtu.be/mdTsFB1ejo8