Corbin vs Presslug

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Boattail slugs, of comparable weight, have less bearing surface. This lets it “teeter/totter” more in the chamber and has a greater chance of misalignment as it enters the rifling. If a tight chamber is present, this may not be an issue. I have not seen a “tight” chamber on factory produced rifles. They make them loose so you can shoot all sorts of ammo.

As for proper sealing, it doesn’t take much. There is a point of tradeoff between sealing and friction losses.

Pellets do not suffer as much from a looser chamber, they almost prefer it to allow the skirt to stay expanded. The nose finds its way to center at the leade and the skirt is already centered. Plus the skirt seals well due to pressure.

I feel that for a slug gun to be consistent, it needs a proper chamber. (Of course it needs a lot of other things as well)

Dave
 
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Ezana4CE said:
@ba49 Thanks for the heads up. You may have just saved some folks some money.
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I use the S press from Dave Corbin, high quality dies from Dave Corbin, or more precisely, Corbin Manufacturing in White City, Oatregon, a suburb of Medford, Oregon. It will easier to find parts, tips and tricks using Corbin presses is much easier to find, as Corbin S press and Mighty Mite, have been the standard in the USA for a long time. Also, Dave and the new owners of Corbin, regularly talk with customers who are using Corbin equipment so their knowledge of a wide variety of things regarding swaging I think would be hard to beat. Getting a press from overseas and hopeing to find a die maker that has the expertise of Corbin and customers over the years is also something to think about. Great product. My slugs never vary more than a tenth of a grain or two, but you have to be very consistant in you movement with the handle that supplies the force, you must go all the way down, hold if for a second (dwell time) then I often lower the ram and then go back up again to make sure lead wire get out just a tad more on the second stroke, I found this to produce slugs that seldom vary by more than a tenth of a grain. I would literally weigh each slug and most just would be dead on exact. It really is amazing how consistent the weights are. Corbin gets my vote because it is super precise, and built for a lifetime of use. No experience with GMI or PRESSSLUG. Its the precision of dies and base and point forming and how it all works together that produces the consistency of weight from slug to slug as well as good technique in operating the press. Good luck in your swaging pursuits.
 
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TRIPP said:
I use the S press from Dave Corbin, high quality dies from Dave Corbin, or more precisely, Corbin Manufacturing in White City, Oatregon, a suburb of Medford, Oregon. It will easier to find parts, tips and tricks using Corbin presses is much easier to find, as Corbin S press and Mighty Mite, have been the standard in the USA for a long time. Also, Dave and the new owners of Corbin, regularly talk with customers who are using Corbin equipment so their knowledge of a wide variety of things regarding swaging I think would be hard to beat. Getting a press from overseas and hopeing to find a die maker that has the expertise of Corbin and customers over the years is also something to think about. Great product. My slugs never vary more than a tenth of a grain or two, but you have to be very consistant in you movement with the handle that supplies the force, you must go all the way down, hold if for a second (dwell time) then I often lower the ram and then go back up again to make sure lead wire get out just a tad more on the second stroke, I found this to produce slugs that seldom vary by more than a tenth of a grain. I would literally weigh each slug and most just would be dead on exact. It really is amazing how consistent the weights are. Corbin gets my vote because it is super precise, and built for a lifetime of use. No experience with GMI or PRESSSLUG. Its the precision of dies and base and point forming and how it all works together that produces the consistency of weight from slug to slug as well as good technique in operating the press. Good luck in your swaging pursuits.
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???
 
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Ta-Ta Toothie said:
Presslug hit the dirt. Especially with the .22. I had tried samples and they were horrible. I'm definitely happy with my Corbin press.
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I agree, I am very disappointed with Preslug. I really like their quality but the die sizes selection sucks. They show like 4 different diameter dies in 22cal. but try to find one other than the smallest size. When I contacted them directly last year I was assured they were now going to make their own dies in house and have other diameters available but I haven't seen them. They advertise them but all I see are the smallest one which isn't what I need. Has anyone else had luck finding any?
 
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Ta-Ta Toothie said:
And what about all the people using Altaros. Are they not boattails? I don't remember any complaints.
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As far as Altatos slugs in .25 go, "ATP-SMOOTH"s are more acurate in my experience than the "ATP"s which have grooves. So yes, seating and alignment support probably does matter, to the extent that the grooves would reduce it for a slight reduction in friction. But the smooth-walled Altaros slugs are both boat-tailed and quite accurate.
 
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JDGriz said:
As far as Altatos slugs in .25 go, "ATP-SMOOTH"s are more acurate in my experience than the "ATP"s which have grooves. So yes, seating and alignment support probably does matter, to the extent that the grooves would reduce it for a slight reduction in friction. But the smooth-walled Altaros slugs are both boat-tailed and quite accurate.
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Seating depth applies regardless. You adjust your weight to find what works the best.
 
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I am also using Corbin equipment.swaging BT in both .218 and .250 they shoot awsome in both my DRS 22 and Panthera 25. My experiance with BT slugs dont try to go light weight. They wont have enough bearing serface. A friend asked for some .250 40 grain for his DRS I also sent some DB same weight and hollow ogive HP. He said the BT shot horrible DB shot great. I believe not enough bearing surface. I shoot 51.8 grain in my Panthera 25 and they shoot great! I shoot 35.5 in the DRS 22 and they shoot great! So my believe dont try to make BT slugs too light. We shoot slugs because we want something heavier and higher BC than pellets right.
 
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