12 ga. Slug

smokeeter

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I picked up a slug mold the lyman 525 pellet style mold (this mold has been around for quite some time). The slug is designed to be used with basic shotgun loading components specifically Winchesters AA wads and hulls. After doing some extensive research on cast shotgun slugs. The reviews on this particular slug were good overall but not without its challenges, The biggest challenge was locating the win. AA components since they were discontinued nearly a decade ago, but there are some substitutes that have been proven to work just as effectively. Fortunately for me I had some of the extinct wads and hulls from my old duck hunting days so I was off to a good start.
Some people reported that the hollow base was better if filled , to prevent the wad from driving into the back of the slug. Some were filling the slug with hot glue , epoxy even caulking I opted to fill it with paraffin wax. This was a relatively easy operation , I just melted some shaved wax pieces in a spoon over a burning candle then poured the molten wax into the base and cut of the excess with a utility knife.
The only other challenge was to find the optimum powder for the prescribed loads and everyone knows what difficulties lie with finding powders today.
Anyway I still had some old magnum shotgun powder at my disposal that had similar characteristics as the recommended powder. I started with a lesser charge to err on the side of caution, I chronographed the load and got speeds of approx. 1300 fps. well within the recommended loads. I only tried the one combo but plan on bumping the charge up slightly to see if things change.
I was pleased with the results of this venture and don't know if I could improve much. The B.C. on this bullet isn't good more like a flying brick but the knock down will be awesome , it'll be more that sufficient at 100 yds and I may stretch it to 150.
I was using a savage 210 slug gun with a rifled barrel.
Here are couple of pics of the slug and the results at 100 yds.



 
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Wow...Nice group! I've been eyeing the Lyman 525 but haven't pulled the trigger on grabbing one just yet but starting to get board with my Lee 1oz and after seeing your results I think it might be time...

Not sure if this helps but thought I would share, here's some load data I had saved for future use as it allowed the use of components currently available :

Powder Charge Primer Wad Velocity Pressure

Federal Gold Medal

Univ. Clays 36.0 Win 209 WAA12F114 1503 10,100
WSF 34.0 Win 209 WAA12F114 1482 11,300
Herco 32.0 Win 209 WAA12F114 1389 11,100
SR 4756 44.0 Win 209 WAA12R 1585 10,500
800X 31.5 Fed 209AWAA12 1459 10,700
Blue Dot 46.5 Win 209 WAA12R 1544 9,900
571 42.0 Fed 209AFed 12S4 1429 10,700

Federal Plastic Hunting

Univ. Clays 35.0 Win 209 WAA12F114 1442 9,300
34.0 Win 209 WAA12F114 1421 9,200
Herco 30.0 Win 209 WAA12F114 1297 9,100
SR 4756 40.0 Win 209 WAA12R 1439 8,300
800X 30.0 Fed 209AFed 12S4 1403 9,800
Blue Dot 44.0 Win 209 WAA12R 1408 7,300
571 42.0 Fed 209AFed 12S4 1405 9,900

Fiocchi Plastic

Univ. Clays 34.0 Win 209 WAA12R 1478 10,100
WSF 31.0 Win 209 WAA12F114 1383 10,000
SR 4756 37.0 Win 209 WAA12R 1396 8,700
N3SH 36.0 Win 209 WAA12R 1486 9,700
Blue Dot 44.0 Win 209 WAA12R 1476 8,800

Remington RTL (Premier)

Univ. Clays 29.0 Win 209 WAA12F114 1386 10,800
Unique 23.0 Win 209 WAA12F114 1269 11,100
Herco 25.0 Win 209 WAA12 1249 11,300
SR 4756 34.0 Rem 209PWAA12R 1448 11,100
SR 4756 35.0 Win 209 WAA12R 1462 10,900
Blue Dot 41.0 Rem 209PWAA12F114 1475 11,000
Blue Dot 43.0 Win 209 WAA12F114 1501 11,200

Remington Unibody SP

Univ. Clays 32.0 Win 209 WAA12 1416 9,900
WSF 32.0 Win 209 WAA12 1434 11,400
Herco 30.0 Win 209 WAA12 1336 10,600
SR 4756 37.5 Win 209 WAA12F114 1468 10,200
800X 31.0 Win 209 Fed 12S3 1440 10,700
Blue Dot 45.5 Win 209 WAA12F114 1482 9,300
Blue Dot 46.0 Win 209 Fed 12S4 1532 10,600

Winchester AA

Univ. Clays 29.0 Win 209 WAA12F114 1358 9,700
Unique 23.0 Win 209 WAA12F114 1271 11,100
Unique 22.5 Win 209 Fed 12S3 1231 10,500
WSF 30.0 Win 209 WAA12F114 1393 11,000
WSF 28.0 Win 209 Fed 12S3 1332 10,500
Herco 25.0 Win 209 WAA12F114 1273 10,900
SR 4756 35.0 Win 209 WAA12R 1378 8,800
N3SH 30.0 Win 209 WAA12F114 1372 10,100
Blue Dot 44.0 Win 209 WAA12R 1474 9,200
 
Herco 25.0 Win 209 WAA12F114 1273 10,900

That is the load I use for these and get the same type of groupings. Fortunately I picked up the last of the wads that Epps had so I am stocked up for quite some time. I have never filled the base of mine but think I will try it out.
 
Try Ellwood Epps, one of our sponsors. 1-705-689-5333 or email. The occasionally have some moods in stock. Best of luck.
 
The hollow base plugs are on pins that slide horizontally which pushes the slugs away from the mold, just invert and the bullets drop away onto a folded terry towel to prevent deforming
 
I tried the mp slugs today, and im friggin happy with the results.

I used 29gr of universal clays, win aa hull, win red or yellow wad.

shot them with out filling in the cavity using smooth bore 11" shotgun.

slugs are 481gr, .681 dia

Standing at 50 yards.
slugs.jpg


And the slugs.

tbslugs.jpg
 
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I tried the mp slugs today, i and im friggin happy with the results.

I used 29gr of universal clays, win aa hull, win red or yellow wad.

shot them with out filling in the cavity using smooth bore 11" shotgun.

slugs are 481gr, .681 dia

Standing at 50 yards.
slugs.jpg


And the slugs.

tbslugs.jpg

Impressive results but why did you bother powder coating them? In a wad, they never touch the barrel.
 
I have shot hundreds of those slugs! Great design for sure.
I fill my slug bases with hot glue.
I have been using Unique for powder.
Shooting from An 870, smooth bore slug barrel, I have been getting around 2- 2 1/2" at 75 yards. Fun stuff!
I dont load them hot, as they tend to recoil a bit much from such a light gun.

I have lots of WinAA wads, but have tried a few federal wads as well. They all work about the same.

One factor that seems to make a difference is the alloy. I seem to have better luck with WW+tin , rather than pure lead.

I think the slug skirts may start to buckle with soft alloy and magnum loads. When the slug base is filled, it has more support as well.
 
Powder coaring them would also increase their diameter and maybe give a better fit in the bore (fill the wad colum better for alignment).
 
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