I did not know they was tappered.
I will remove the chokes when using slugs.

European. This was the first forum with some trafick I could find where I feelt that the lever of experience would answer my questions.

Why not? It's a quite cheap gun witch look's quite good.

Do not remove the chokes completely!! When shooting slugs, Improved Cylinder tends to work the best in most cases, and is perfectly safe. You could also use Cylinder Bore, but I'm betting you'll get better accuracy with IC in both barrels. As for shooting slugs through your O/U, it won't hurt it at all, it's just a bit unconventional. The only other problem I see is that both barrels might not be that well regulated to one another, causing the slugs fired from each barrel to shoot to a different point of impact, meaning that if you install sights, you might only be able to sight in one barrel. You'll just have to shoot it and see.

Good Luck,

Mike

If your shotgun has removable choke tubes, DO NOT fire it with the choke tubes removed..This may damage the threads on your barrel..

Slugs should not be fired through extra tight choke tubes designed for turkey hunting or other small constriction tubes..However, there is no harm in firing slugs through "standard constriction" choke tubes normally provided when you buy your gun...Generally, modified or IC tubes will give you better accuracy than full choke tubes..

Kind of tested it this morning without choke tubes before reading this thread again.
Worked well and the acuracy seamed fine.
No damage on the threads that I can see.