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Old Eynsford verses Swiss
Posted: Mon Jan 13, 2020 5:19 pm
by 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
Re: Old Eynsford verses Swiss
Posted: Mon Jan 13, 2020 5:46 pm
by BFD
What lot numbers?
Standard deviation would be more helpful than ES.
Good work.
Re: Old Eynsford verses Swiss
Posted: Mon Jan 13, 2020 5:48 pm
by BFD
I assume the last 5 shots in test 2 were OE. Correct?
Re: Old Eynsford verses Swiss
Posted: Mon Jan 13, 2020 5:50 pm
by Blackstone
Ill go look at the lot #'s . I didnt log the Sd's .
Re: Old Eynsford verses Swiss
Posted: Mon Jan 13, 2020 6:06 pm
by Blackstone
Swiss 31/10/2016
OE E1-02/13MY06B
Sd on the 430 OE was 8.7
SDon the 430 Swiss was 7.5
Re: Old Eynsford verses Swiss
Posted: Mon Jan 13, 2020 6:09 pm
by Blackstone
Yes the last 5 were OE . It was faster
Re: Old Eynsford verses Swiss
Posted: Tue Jan 14, 2020 6:15 pm
by Lumpy Grits
Did you weigh each charge of powder?
Gary
Re: Old Eynsford verses Swiss
Posted: Tue Jan 14, 2020 7:13 pm
by Blackstone
Yes charges were weighed
Re: Old Eynsford verses Swiss
Posted: Fri Jan 17, 2020 9:52 pm
by 1minute
The data are there. One can calculate the SD.
Re: Old Eynsford verses Swiss
Posted: Sat Jan 18, 2020 5:11 am
by VectorMan
Was there any compression in these loads?
Was there any next tension also?
Re: Old Eynsford verses Swiss
Posted: Sat Jan 18, 2020 10:29 pm
by Blackstone
.001 neck tension and about .200 compression .
Re: Old Eynsford verses Swiss
Posted: Sat Jan 18, 2020 10:29 pm
by Blackstone
.001 neck tension and about .200 compression .
Re: Old Eynsford verses Swiss
Posted: Sun Jan 19, 2020 5:53 pm
by 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
Re: Old Eynsford verses Swiss
Posted: Sun Jan 19, 2020 6:03 pm
by John Boy
BTW, there is an Industry Standard for all grades of blackpowder and all grades Olde E are outside the Standard
Re: Old Eynsford verses Swiss
Posted: Sun Jan 19, 2020 10:29 pm
by 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