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Old 09-23-2004, 16:57   #16
BuffaloBo
Senior Member
 
Join Date: Jun 2004
Posts: 852
As promised, I gathered some data (yawn) using Hodgdon Universal Clays.

Setup was:
G20 using KKM 5" barrel
CCI Standard Large Primers
Winchester nickel brass
COL was 1.25"

180 gr FMJ Winchester

(5.8 gr Universal) -10% max (as per Hodgdon)
7 shot sample:
Avg: 1014
Std Dev: 24
High: 1053
Low: 989

(6.4 gr Universal) max (as per Hodgdon)
7 shot sample:
Avg: 1123
Std Dev: 6
High: 1128
Low: 1113






200 gr FMJ/FP Hornady

(5.3 gr Universal) -10% max (as per Hodgdon)
7 shot sample:
Avg: 963
Std Dev: 18
High: 989
Low: 932

(5.9 gr Universal) max (as per Hodgdon)
7 shot sample:
Avg: 1031
Std Dev: 13
High: 1053
Low: 1017

(6.4 gr Universal) +10% max (as per Hodgdon)
7 shot sample:
Avg: 1105
Std Dev: 13
High: 1053
Low: 1017







Psst! I'm gonna sneak in some 40 data here also.


Setup was:
G20 using Federal barrel @ standard length
CCI Standard Small Primers
Federal brass
COL was 1.125"


180 gr FMJ Winchester

(5.2 gr Universal) -10% max (as per Hodgdon)
7 shot sample:
Avg: 1014
Std Dev: 19
High: 1041
Low: 993


(5.8 gr Universal) max (as per Hodgdon)
Avg: 1092
Std Dev: 17
High: 1114
Low: 1064

(6.2 gr Universal) +10% max (as per Hodgdon)
Avg: 1114
Std Dev: 15
High: 1135
Low: 1093



200 gr FMJ/FP Hornady

(4.2 gr Universal) -10% max (as per Hodgdon)
Avg: 831
Std Dev: 23
High: 863
Low: 797

(4.7 gr Universal) max (as per Hodgdon)
Avg: 936
Std Dev: 18
High: 956
Low: 900


Some observations:

I didn't expect much from this powder and frankly I wasn't disappointed! In some samples, pressure signs manifesting themselves in "smiley's" came on quite early. So, I had to scrub a few samples for safety.

The 10mm cartridge was tolerant with this powder, but it was not the case for .40. For the 180 gr 40 SW, don't look beyond about 1050 fps, or else you're flirting with bad pressure signs. The numbers for 200 gr 40SW are too low for serious velocities, but showed no signs of pressure either.

I've heard it said that Universal was the answer to the aged and decrepid Alliant Unique. To be honest, I didn't notice any cleaner burning and certainly didn't notice better velocities with Universal. To its credit, it does meter somewhat better than Unique, though.

Well, my results show that this powder is well suited as a mild plinking powder as it was intended to be. I have been surprised with certain other powders with supposedly similiar burning speeds and have exploited them with no signs of sacrificing safety.
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