Norway-Sweden Trial Cartridge of 1893 -- 6.5x55

[Dutchman]

reference: Crown Jewels: The Mauser in Sweden by Dana Jones, pages 219-223.

I thought the dimensions of the bullet might be of some interest to them who design boolit molds... especially the tapered nose. Its the same bullet as adopted for the Swedish m/94 cartridge.

http://images53.fotki.com/v1495/photos/4/28344/9597910/photo-vi.jpg

http://images20.fotki.com/v422/photos/2/28344/5902270/l_19031_tif8215542206258649814-vi.jpg

[Larry Gibson]

Dutch

Converting those figures to inches for the bullet dimensions certainly agrees with my measurements of several Swede throats, especially the taper. That book wouldn't happen to give the original chamber dimensions would it?

Larry Gibson

[nekshot]

What can we learn from this? Do we have any current production molds that agree with these dimensions. I really want to buy a 6.5 mold and I am leaning towards the 26673. I have a swede 96 in 6.5-55 and a 6.5 06. Hoping one boolit can work in both guns.

[45 2.1]

Do we have any current production molds that agree with these dimensions. Hoping one boolit can work in both guns.

Sure... convert the bullet diameters this way. (diameter given)/25.4 = diameter in inches. BTW the base bullet diameter given is 6.70mm = 0.26378" which is quite a bit smaller than some of the groove diameters reported on the forum. I think every mold you can come up with will do that or more. It should fit in anything, but whether you get accuracy over 1400 fps or any accuracy at all would be problematical IMO. The first diameter forward of the case mouth (6.52mm) is 0.2567" which is about land dimension and 0.512" forward of the bullet base. Bullet length is 1.2598". Actual bearing length is about 40.6% of bullet length. I actually have about a box of pulled bullets like these. The case mouth crimp shows on the bullet, so they must expand some into the grooves, upon firing, more than their unfired diameter.

Nice reference Dutchman...................

[madsenshooter]

Swede once made a 163gr flatnose, small meplat, that is similar to these dimensions, it wasn't a group buy, he sold them on the vendor sponsor page. If it had a round nose rather than its .118" flat nose it would be virtually the same length bullet. I'll send him a PM, maybe he'll put up a drawing. Nose is a bit fatter and it seats below the neck in my 6.5x257 cases, but perhaps the Swedes have a longer throat than my converted Arisakas. PM sent. The cast bullets I have are about .2mm fatter in the nose, not as tapered, but they are cast of a very high Sn alloy.

[DeanWinchester]

You can also multiply by .03937

In every machine shop I've ever worked, that's what we used.

[madsenshooter]

For the mathematically challenged, like me, a calculator that automatically does conversions works. TI86 in my case but any of those $100+ calculators you have to buy for your kids has it.

[JHeath]

For the mathematically challenged, like me, a calculator that automatically does conversions works. TI86 in my case but any of those $100+ calculators you have to buy for your kids has it.

The Construction Master 5 calculator is about $40 at Home Depot and easily converts between inches (decimal or fraction), metric, feet, yards, etc. Also converts square surface and cubic volume, super easily. I worked in Montreal, sometimes on Euro projects, and got a lot of mileage out of my CM 5.

[madsenshooter]

The TIs are required for a lot of college math courses. When I was going to college in the 90s, a lot of the kids (I was in my late 30s then) must've been as mathematically challenged as I was. Darn SV40 virus must've taken out that part of my brain, but the calculator was a big help to me, especially in chemistry, cause I put my notes in there and we had our calculators during tests!