doublegunshop.com - home Forums General Discussion DoubleGun BBS @ doublegunshop.com Leading and chromed bores

How much leading would you expect, or better yet, have you experienced, in chrome lined bores when using shells loaded with nickel plated (true electrolysis plated) shot ...............when NOT using a plastic shot cup that encloses the pellets?

SRH

Since no one else will bite... My 16 gauge pheasant load uses nickel plated shot with the very short SG16 wad. I definitely notice more leading in the bores after shooting this load in my FAIR over/under with chrome lined bores. I do not notice as much leading with the Fiocchi Golden Pheasant shells with a slightly longer wad and nickel plated shot, even though the shot cup does not extend to the top of the shot column. I hope this helps.

It does, indeed. I guess I was hoping that the nickel plating, or the chrome lining, or combination of both, helped lessen the amount of leading. Thanks for sharing your experience.

Maybe some others have noticed something they can add.

SRH

Might be the leading just shows up better in the chromed bores. And cleans up easier as well...Geo

It does clean up much easier for sure.

A Frontier pad wrapped around a bore brush and spun through the bore with a electric drill will quickly remove any remaining.

Thanks to all. I am trying to get a full 3/4 oz. of hard nickel plated #8 shot into a WW .410 HS hull, and it looks like the only way to do it is to eliminate the petaled shot cup, and just use the base part of the wad without the petals. I can get about .72 oz. in, using the red WW wad, but even it has the top third of the load exposed to the bore, above the wad petals. I may load a few without any petals just to see how much it will hold, and how they pattern. I've got a feeling I won't like the patterns, but we'll see.

The WW 3/4 oz. .410 loads have a full 3/4 oz. in them, but it is not plated shot, so weighs a little more. Therein should be the difference between the .75 oz. in them and the .72 in mine.

The reason for wanting the full 3/4 oz. is that one of my S x S guns is regulated only with a 3/4 oz. load at about 1100 fps. I'm trying to duplicate that with hard nickeled shot.

SRH

Stan, a mylar wrap inserted inside the hull inside the wad extending upwards outside the wad containing the shot outside the cup may contain the shot long enough to help avoid barrel scrubbing. It's worth a try. BP sells a thin wrap. Gil

Have you got any Remington 3" hulls? They seem to have more internal room in them. Remington at one time sold a full length wads for their 3" hull. They no longer sell them for reloading. I never like having shot above the mouth of the wads but in some loads you have no other option. Good luck in your quest.

BP lists two wads that might help. The Stretch 36 which holds .5 to 11/16 oz and the TPS. The TPS is the one I told you about in a PM. I barely got .5 oz of lead 8's in it so 1/3 of the load would be above the wad. The specs on the Stretch 36 don't appear to be better than the TPS as it's depth is less. The TPS's depth to gas seal is 1.8" and the Stretch is shorter.
I have experience with 13/16 oz of tungsten shot in the TPS and note that even though the load is to the top of the wad, the shot imprint on a fired wad is only 2/3rds the length suggesting (to me, anyway) that there is considerable set back on ignition driving the shot deeper into the cup indicating the same may occur to lead shot outside the cup in your loads as it presses into the plastic down and outward. Gil