First Cast NOE 680-500-HB CE1

[longbow]

I've mentioned this before but for smoothbore gun. turbo1889 posted some years ago that the Lyman sabot slug would go unstable if launched supersonic when velocity dropped to transonic. I think that was for smoothbore gun though. turbo said if was because of the very blunt wadcutter nose.

As for fit, this is the big issue with shotgun slugs. Finding the correct wad fit fit to bore then the bores vary all over the place... at least in smoothbore. Ajay has posted a tremendous amount of into on slug fits with different wads. He is mostly a 20 gauge guy but he has posted a lot of info on both the Lee slugs and Lyman 525 gr. slugs as well. Both are about the same size and tapered but if you check links below there are several posts specifically about the Lyman 525 gr. slug and wad fit. I just scanned through and copied links and posts that may be helpful (could be some repeat info):

http://castboolits.gunloads.com/show...light=fit+slug
http://castboolits.gunloads.com/show...light=fit+slug

http://castboolits.gunloads.com/show...light=fit+slug

check post 216 above.

http://castboolits.gunloads.com/show...light=fit+slug

check post 529 above.

http://castboolits.gunloads.com/show...light=fit+slug

check posts 604 and 607 above.

http://castboolits.gunloads.com/show...light=fit+slug

check posts 649 and 650 above.

http://castboolits.gunloads.com/show...light=fit+slug

check posts 660 and 669 above.

http://castboolits.gunloads.com/show...light=fit+slug

check posts 705 and 706 above.

It seems that smoothbore bore diameter vary considerably but that for many rifled guns 0.727" seems to be a common groove diameter. I have read though that the H&R USH had large groove diameter and Mossberg at 0.730" but that is hearsay, as I haven't measured them myself. Have you slugged your Marlin 512?

Good luck!

Longbow

[Ranch Dog]

Thanks, Longbow. I used an inside micrometer on both the Marlin & Mossberg. The Mossberg is .730" and the Marlin .731". I checked each pair of bands around the bore, about an inch inside the muzzle, and all were equal. At least they are round.

Thanks, also for the links. I will read through them. I will approach these with caution as similar reading for the Lee has my room stacked with about $150 ~ $160 worth of wads that others said were "great" and I found unacceptable. Honestly, I need to see some acceptable 100-yard testing before I return to traditonal column wads. I'm going to call BPI about the solid cups in just a bit to verify those posted dimension.

The weather probably won't lift for a day or two, but when it does, I'm going send the bullets and Hammerhead sabots downrange.

[Ranch Dog]

Well, that is my next step. I've been thinking about the BPI 0729012 and LBC30. You can cut the unslit cups to length with a razor blade.

Well, heck. Called BPI and apparently they keep all their offerings available for the fellows that answer the phone. The fellow on the phone pulled one off the shelf and measured the wall thickness with a caliper. Given the outside diameter, the Lee nor the Lyman will fit inside.

[6pt-sika]

I cast 52 slugs today all solid base and all of 50% WW’s and 50% pure . Haven’t bothered to weigh any yet . Hopefully I can get a few loaded Wednesday and I’ll try them off the hood of the truck at my house . Hopefully 6 shots at 25 and if they don’t look to bad I’ll try six more at 50 . Why six you might ask ? , I’ll be using a double barrel and I like to shoot three from the right at one target and three from the left at a different target .

[W.R.Buchanan]

The weather has turned too foul to shoot.

When I was in Texas during my time the the USAF the accepted point about the weather was,,, "If you don't like it,,, just wait 20 minutes!"

Incidentally my Cat really likes your Dog Avatar. But he just can't seem to catch it.

On another note: it seems that my new Browning Smooth Bore Slug Barrel is supposed to shoot pretty well with Slugs with lands on them.

The fact that it is choked to .715 at the muzzle doesn't seem to be a deterrent. I know that my Lyman Slugs with the CG blue wads won't fit in the muzzle as the wad slug combo measures .722 so there will be Sheared wad petals with that barrel.

Hopefully they will work with the rifled barrel I picked up today..

I just have to shoot this thing with various loads and see what happens.

Randy

[Ranch Dog]

When I was in Texas during my time the the USAF the accepted point about the weather was,,, "If you don't like it,,, just wait 20 minutes!"

And durned if it didn't. The rain stopped long enough for me to get out and shoot the a few Hammerheads and then the all the oddball slug loads that have accumulated on my bench.

Incidentally my Cat really likes your Dog Avatar. But he just can't seem to catch it.

Crazy!