10 Years Report
I've now been running a Mossberg for the past 10 years. It was my first firearm purchase, and it came as a combo, with a 24" improved cylinder rifle sight barrel, and a 28" bead sight barrel. The 28" got chopped, smoothed, and re-blued at 18". The 24" rifled barrel I kept just in case I needed tighter patterns at longer ranges.
What I've found is that Mossbergs like to be shucked HARD. Dead casual cyclers need not apply. It has dual action bars and dual extractors, but cycles best when you put a little "stremf" into it! The Mossberg setup works better for me than any other pump b/c of the safety & pump release location. It is real intuitive; forward is fire, backward is safe. I think of the chamber, and keep the safety in the direction of where I want the projectiles. The pump release is also conveniently located, and I can activate it with my firing hand thumb. I was never able to get used to the Remington 870 setup, but the Mossberg arrangement worked very well. In the past 5 years, I started shooting action shotgun matches, and I started putting the longer barrel to good use. We are often required to make 25 yard shots (with birdshot) on steel knock-down targets, and you need as many pellets on target as possible.
In running these matches, I found that my shotty doesn't like soft, aluminum rimmed cases. The dual extractors rip right past the rim, creating a wicked FTE that must be cleared with a cleaning rod. After many thousands of rounds, I've also noticed that my magazine tube developed a wierd problem. The barrel screws in to the end of the mag tube. At the end of the mag tube is a threaded endcap. That threaded endcap has loosened up and made it a PITA to insert & remove barrels. I still need to call Mossberg and see what they have to say. In all honesty, I'm not expecting a warranty repair, or red carpet treatment after all this shotgun has been through in the past 10 years.
The 500s shoot well and are easy to maintain, and are cheap to boot. Aftermarket accessories are all over the place. You really can't go wrong. Hell, for the $250 I spent, even if my 500 combo shat the bed, I wouldn't be upset at this point. Sometimes you have to confess when you've "ridden a horse long enough."
Shotgunning is a whole 'nuther realm. You've got such a wide array of shells; birdshot sizes, buckshot, slugs, beanbags, etc. You've also got different patterns & results at different distances with barrel length & choke. One of the first thing people find out in action shotgun matches is that it IS easy to MISS with a shotgun, even though Hollywood and the Governator would have you believe otherwise.
Enjoy the path which you are about to embark,
B9
Link to my wierd mag tube issue:
http://www.ricanhavocproductions.com/500a.wmv