7.5 Swede advice

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tula

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Where should I start? What are people using as the base case to make the 7.5 Swede round and what’s a suggested load?
 
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Use the 25-20 or 32-20 Winchester cases. Cut case length to .890 inches. Fireform using 100 grain 323 bullet....(you have to cut Lyman 323470 cast lead bullet to .52 inches long, then drill base with .250 drill, 3/16 in deep.) Bullet will be undersized, but will expand to take rifling. Suggested load is 2.0 grains of Bullseye, for 720 fps.
 
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32-20 has rims that are too thick. You will need to thin them out and then your primers will be sticking out. Don't bother with 32-20 in swedish nagant. Because the cylinder won't rotate after few rounds fired. Just buy PPU 7.62 Nagant cases and cut them to proper length. Nagant used same cartridge base for Swede and Russian revolvers.
There is a thread about 7.5 Swiss in this forum that has many variations of this cartridge. 7.5 Swede and Swiss are about the same cartridge only difference is bullet shape and powder for it.
 
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Information was taken from "The Handloader's Manual of Cartridge Conversions". by John J. Donnelly, 1987. Nice to see that other people have adapted other cases that are available since then.
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buffdog said:
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Information was taken from "The Handloader's Manual of Cartridge Conversions". by John J. Donnelly, 1987. Nice to see that other people have adapted other cases that are available since then.
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Click to expand...

Donnelly's a good starting place but I find he uses a lot of cases that take the long route and his numbers are not always right. I do a lot of case reforming. No book is perfect but being a book based on numbers I expect better. Still a good reference. His first book is put away in a safe place and #4 is the one I use.
 
Not sure about the Swedish Nagant, but Swiss 1882's most certainly function with Starline 32-20 brass unmodified. In fact, you don't even need to trim the cases. PPU 7.62 Nagant brass, as noted above, also works.
 
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I think I’ll get a bag of 7.62nagant brass and trim it. What exactly is the difference between 7.5swede and 7.5swiss?
 
original military bullets were .315-.319" for SWISS and .325" (paper patched) for SWED, but you can shoot "suitable" cast lead bullet from both. "Suitable" = about .310-.315". SWISS barrel is .315-.308" at muzzle and SWED .308 in grooves.
 
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Anyone here try 777 powder in the swede? I made some loads up, around 14grs 777 measured volume, or weighed out its 9.5gr weight. And .312 78gr hard cast lead bullets. Used 7.62x38 nagant revolver brass cut down. Sound like a reasonable load? I always worry about new powders with limited data available for smaller cartridges like this.
 
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