Old Eynsford verses Swiss

[Blackstone]

Here's a head to head comparison of OE to Swiss . This is 2 f in both brands .
The cartridge is .40 2 1/2.
Test one . Once fired 30-40 Rem. From BACO upsized. Br2 pr. 68 gr Swiss .060 polly with paper on top , lyman snover 16-1, sixed 409, DGL lube
1. 1365
2. 1352
3. 1369
4. 1374
5. 1367
Av. 1363 ES 22

OE same case and bullet 68 gr . Both powders had exact powder colom height
1. 1404
2.1398
3. 1394
4.1399
5. 1382
AV 1394 ES 22
Test 2
Same case and case prep BR2, 70 gr Swiss Hoch 430 16-1
1. 1374
2.1358
3. 1371
4. 1362
5. 1358
AV 1365 ES 16
Test 2 Swiss 2f
1. 1401
2. 1391
3. 1402
4. 1381
5. 1398
AV 1395 ES 21
Labdar doppler ballistic chronograph
All loads were 2f

[BFD]

What lot numbers?
Standard deviation would be more helpful than ES.
Good work.

[BFD]

I assume the last 5 shots in test 2 were OE. Correct?

[Blackstone]

Ill go look at the lot #'s . I didnt log the Sd's .

[Blackstone]

Swiss 31/10/2016
OE E1-02/13MY06B
Sd on the 430 OE was 8.7
SDon the 430 Swiss was 7.5

[Blackstone]

Yes the last 5 were OE . It was faster

[Lumpy Grits]

Did you weigh each charge of powder?
Gary

[Blackstone]

Yes charges were weighed

[1minute]

The data are there. One can calculate the SD.

[VectorMan]

Was there any compression in these loads?

Was there any next tension also?

[Blackstone]

.001 neck tension and about .200 compression .

[Blackstone]

.001 neck tension and about .200 compression .

[John Boy]

There is only one reason why the FFg grade of Olde E is faster than Swiss ... The grain ratio mix, 4.27% of 40 mesh in a FFg grade and a tad of 50 mesh to boot? Give me a 'cheating' break!


Swiss FFg (250.504)
20 mesh - 76.16% retained
30 mesh - 23.50% retained
Through - 0.34%

Olde E FFg:
20 mesh - 62.81% Hold
30 mesh - 32.32% Hold
40 mesh - 04.27% Hold
50 mesh - 00.60% Hold
60 mesh - Trace

[John Boy]

BTW, there is an Industry Standard for all grades of blackpowder and all grades Olde E are outside the Standard

[beltfed]

Would be nice if everyone would abide by industry standards,
but, if Olde E can work better for shooters outside of the standards,
so be it.
beltfed/arnie