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Has anyone here fiddled around with rifled chokes and slugs? What results or trends are you seeing? Got a Sulun 14" with a rifled choke and slug suppressor (custom) and it doesnt seem to like sabots (thankfully) but conventional slugs it seems to like to an extent. Thinking about swapping to a IM choke so i can run buck as well.
I've often wondered if those chokes work?
You have an ounce of lead travelling down the barrel at 1300 fps and it encounters shallow rifling for the last 2 inches?
Can it take the spin in those circumstances?
In the century before last English gun makers produced paradox guns basically a shotgun with the last 4 or so inches rifled with a slow twist. It significantly improved the accuracy of slugs and the conical bullets designed for them and still gave acceptable patterns with shot at close ranges.
So it's not a new idea. I wonder if interchangeable ones wouldn't either unscrew or tighten up excessively.
In my experience buck shot and bbs pattern best with a cylinder bore, tighter chokes seem to spread the pattern for some reason I can't figure out
Hi in the air gun world " F X " company do have some of their barrels done this way [smooth then a twist @ the end ]
they are rated rather highly ..
So when you reload do you still want to use the cup//wad and shoot under sized lead or go full bore with your projectile size
What brand of supp. are you using . I have a couple of different brands and do shoot solids via them ,but i tend to use subsonic loads because of the noise of the H Vel. One barrel is even ported to slow regular ammo down Cheers
Just save your time and money and buy this ready to shoot Paradox rifle in stock in NZ.
I can go look at it for you if needed ?
https://collectorweapons.co.nz/Produ...-e5a73fa3a1b6/
I use a Remington 1187 with scope & rifled choke in a slug barrel, I shoot 1oz Lee Keydrives ...... explodes a rabbit at 50-60m. Am looking forward to trying it on a few pigs
I have rifled choke in 18 inch barrel with sights on Remington 11~87 works great to 100 yards
@Bob Da Browning. What 12 ga cartridge structure have you developed for such good accuracy with Lee slugs?
My question still stands, if your slug is in a plastic wad are we saying underr those circumstances the plastic wad takes the spin?
I'd like to see it provern
Win aa hulls, white win aa 1& 1/8 wad with 20g felt base cut in half under the slug & petals trimmed back to shoulder of slug 8 crimp & 22grains as50n powder, win 209 primer. We blow up 2lt milk bottles filled with water & formula tins filled with water & lids jammed back on for reactive targets & giggles
I didnt find the slugs as accurate with the skeet choke & imp cyl choke but minute of rabbit & possum has been good so far, am looking forward to pugs in the next few weeks
@Bob Da Browning: Thankyou.
It's quite possible it's the dia of the rifled coke that is giving you the good results rather that the fact it's rifled
Could also be the rifling grabbing the wad & pulling it cleanly off the slug maybe, as the groupings were terrible before I started putting the card/felt under the slug. Would really need a highspeed camera to get a good slow motion shot of wad & slug leaving the barrel.
there are some folks who put a big plug of silicon up the arse of those slugs.
Lots of info on the castboolits thread about slug loads.
the lee slug is like a giant oversized slug pellet so ANY spin will be better than none.
The big hollow base actually produces a degree of stability due to aerodynamic drag. Air in the base is at a lower pressure than that flowing over the slug which tends to hold it straight, or at least a bit wobbly, ad a tiny bit of if spin and it's even better
Hi all what i asked earlier was if you shot true bore [like a rifle ] and not use a plastic cup between shot and bore [shotgun usual ]
12 g barrel id [no restric. choke ] is .729 - .730 and rifled bore is .7205 - .730 bore and grove @ .731
if a cup is used to hold lead ball / pointy like projectile then rifled insert @ muzzle would just as likely just strip the cup off the load and not induce much spin on
projectile .However if a lead ball or shaped projectile coated with a powder coat or Lee Alox and cast to the size of .730 should just act like a regular bullet out of a reg. rifle barrel . my2c
I had a Lee mould I machined out to bore dia, first problem was it ended up nearly as wide as it was long, like a flat wadcutter, I can't imagine it would give good results,
I have a fully rifled barrel for a rem 870
Hi Skeetshooter
did you ever tried any of those " flat wadcutters " via your f/ rifled barrel ? cheers
No I didn't shoot them, I couldn't see how they could possibly work, they looked quite weird
I've still got the mould somewhere
There's a yotube channel "taofledermous" (or something like that) who load all sorts of homebrew solids. They wad/cup/petal them to impart spin and the slowmow seems to prove that.Quote:
Originally Posted by Skeetshooter
You also need an over-powder (card) wad to seal the bore behind the cup/wad so gasses don't get ahead imparting turbluence.
Just like the ol' blackpowder method :)
NB the OP card/wad would need to be able to escape the hull and quickly seal the forcing cone... so, whatever that diameter is, in your chamber
Lee Keydrive slugs have worked well for me
I had a fabarm sp12 a few years ago I got a rifled choke for it it shot factory seller and ballot slugs to about 4" at 50m not sure if that is good or bad but was consistent. After an outing the choke was a bitch to get out. It seemed to get tighter and tighter, also it seems to foul badly with lead. Now I use an M2 with a fully rifled barrel and sabots.
Try the Lyman 12g slug is extremely accurate in most shotguns I have
Tried it in
Have you tried it thru rifled barrel?, what wad do you use in a rifled barrel? It would be good to reload some to try as factory stuff is quite expensive.