I have a 870 express magnum with a 26" barrel with screw in chokes, and I was wonder if I would get good accuracy if I installed a rifled choke to shoot sabots. I have a smooth bore slug barrel but I was wondering on these rifled choke tubes.

Inever tried them but I doubt that they would do anything other than hurt the accuracy. With the soft lead slug tearing down the barrel and at the end trying to impart a spin, I think all it would do is to lead up the rifling and tear the slugs surface apart

Nothing beats a fully rifled barrel for accuracy when paired with quality sabots. With the rifled choke tube groups were not consistent, and as you probably know you should shoot the pumpkin balls (rifled slug) with your smooth bore slug barrel.

-Ron

Rick, I have been wondering about those tubes, too. Adding rifling at the very end of the bore was the genius behind the famous British Paradox guns of the late 19th century, and these had a very good reputation for accuracy to just beyond 100 yards.
Being financially challenged, I have been daydreaming about screwing a couple of these into an inexpensive 12-bore side by side for double-rifle simulation.

I don't know about putting rifled choke tubes in a SxS. Some don't have the solder strength to withstand the pressures.
As for putting them in your 870 just remember, the smooth bore GENERALLY is the poorest for accuracy w/ slugs, the rifled choke tube would be next and a fully rifled barrel would GENERALLY be the most accurate.
Note these are all generalizations. Only one way to find out for yourself, buy a tube and several different brands of ammo and see what it does for you.

quote:

Originally posted by Bbear:

As for putting them in your 870 just remember, the smooth bore GENERALLY is the poorest for accuracy w/ slugs, the rifled choke tube would be next and a fully rifled barrel would GENERALLY be the most accurate.
Note these are all generalizations.

"Foster" type slugs (rifled slugs) stabilize by their weight forward construction (like a "shuttlecock" in badminton) and do not usually benifit from rifling, either fully rifled barrels or choke tubes.

Sabots are a different story however.

Just put a rifled choke tube on a Rem 1100 12 GA. Accuracy is great up to 120 yards. I once had a Hastings rifled barrel & this rifled choke tube shoots nearly as well with Brenneke std slugs. The 120 yd 3 shot group was 2 1/2" CTC. 50 yard groups were 1 1/2" CTC average. The gun is scoped with a 1.5x 4 scope. Hope this helps.

Ranger66:

I have to go with Grizzly1. There just is no comparison. Think about it. A slug going down a rifled barrel is settling down to going out the muzzle as a revolving slug and has a stabilized spin on it. If it only gets a twist or two at the muzzle from a rifle choke how well can it do thereafter?

the only thing I can say is don't forget to change back to a standard choke tube or your bird shot pattern will be around 3 feet across at 15 yards