12g slug testing

[loiner1965]

just a quickie.......
https://www.lymanproducts.com/media/...tslugloads.pdf

[tinbum]

just a quickie.......
https://www.lymanproducts.com/media/...tslugloads.pdf

Thanks, the lyman slug is 34g and the lowest powder charge is 25gr for 1273fps. My slug is a shade under 28g and the powder charge in the shell is an unknown type at 19gr.

[loiner1965]

https://www.youtube.com/watch?v=TU3ESQl2-io
you can tell your in france lol........its grains not grams

[tinbum]

https://www.youtube.com/watch?v=TU3ESQl2-io
you can tell your in france lol........its grains not grams

I'm mixing them aren't I!?

The slugs are 430gr and the powder charge is 19gr, ideally I want subsonic but is that too low?
I know with the 9mm the danger from too low a charge is the bullet staying in the barrel and the next one following it up, but when you are single loading and checking this should be less of a risk. The big question is would the pressure spike if the slug failed to leave the barrel?

All hypothetical til I find out more numbers

[DesG]

My own view is that modern shotguns made with modern steels are pretty difficult to damage. Weld up the muzzle and you will probably blow the end off your gun. Some yankie u toob vids are of people putting 20 bore carts in a 12 bore (rem pump I think) and couldn't do any damage to it all. I have been using slugs and any number of improvised projectiles including hand grenades, (in the middle east) and not yet managed to blow up a gun. We bruised a few shoulders though!

Whilst I wouldn't recommend doing any of the silly things that we did in the desert to anyone else, I also wouldn't tell them not to do it either provided that they don't put others at risk.

[harrysmith]

I home-made some slugs using de-shotted 28g carts. I had different slugs, hollow base and 'rifled' brenneke. The former would fit nicely into the plastic wad but the latter would not but they had a plastic base on them anyway and I have an antique roll crimp device to finish them off. So I went to my club and shot them at 50yds. They all shot 4-5" groups plus I had some factory Gecko which also shot similar groups. This was from my Armasan RS-S1 imp cyl with a red dot, freehand elbow on bench. I also had the opportunity to try them at 80-100m and they all grouped 6-7".

[tinbum]

They shot lovely at 25m, well, they would wouldn't they!

Unfortunately, when pushed out to 50m the term "group" no longer applied, with most slugs going through the paper sideways.

I have a rifled choke on order and will be doing a video comparison between smoothbore, rifled choke and full rifled barrel as soon as I can.

I will say they hit the knockdowns at 25m with some authority, making my 9mm look like a pea-shooter

[uiooloa]

Not many people have got a 12 bore air rifle

[Black Beard]

I'm mixing them aren't I!?

The slugs are 430gr and the powder charge is 19gr, ideally I want subsonic but is that too low?
I know with the 9mm the danger from too low a charge is the bullet staying in the barrel and the next one following it up, but when you are single loading and checking this should be less of a risk. The big question is would the pressure spike if the slug failed to leave the barrel?

All hypothetical til I find out more numbers

Depends where it stopped. If at the breech then yes. If at the muzzle, probably not, but the inertia of the slug stopping could cause it to expand and trash your barrel.

[tinbum]

More testing happened!

Today we mainly played with pump actions, the clear winner is the Benelli Supernova with a red dot mounted as shown by this (the first) five shot group at 50m. There is a certain amount of recoil anticipation there as was shown whenever I mis-counted and fired an empty chamber

[IMG][/IMG]

Different weights had a mild effect on recoil, grouping and tumbling, with the 28g performing best.

[GoodWILLHunting]

More testing happened!

Today we mainly played with pump actions, the clear winner is the Benelli Supernova with a red dot mounted as shown by this (the first) five shot group at 50m. There is a certain amount of recoil anticipation there as was shown whenever I mis-counted and fired an empty chamber

[IMG][/IMG]

Different weights had a mild effect on recoil, grouping and tumbling, with the 28g performing best.

That's more like it!!

If you're feeling recoil enough to be anticipating it then you should perhaps think about looking at fit. With the lighter of my 12g guns I can literally stand shooting all day, hundreds of shots, and I feel nothing. Before I adjusted lop comb height and a slight 2mm cast off, the the same gun punched me in the cheek bone with almost every shot.