BlackMZ... Chronograped
TC Powder Measurer, Tradition Pellet Loader, RCBS 10.10 scale
Per grain volume is approximately 9gr by weight...
But the variance is the grain size and compactibility...
Traditions Pellet Loader volume to wt..
V/W
120/94.2
110/86.3
100/80.7
90/71
80/64.5
70/55.15
60/47.7
Thompson Center measurer/wt
120/108.5
110/98.4
100/88.6
90/79.9
80/70.5
70/62.4
60/54.1
Variance in loading scales by volume
TC/Traditions
120/130
110/120
100/110
90/100
80/90
70/80
60/70...
So there is definitely a big enough variance between the two loader scales to cause significant differences in poi....although...the TC can be tapped to compact the powder very easily where as the Traditions cannot be compacted as easily...
I did not test the compacted TC... but I dont see being able to compact another 10 grains by volume....
460gr..lee paperpatched bullet
80gr/weight...1553 fps
70gr/volume..........1281
60gr/v.....................1057
....ran out of bullets...
250gr lehigh/sabot
100gr/wt....2047
105gr/v...1884 & 1840
...ran out of bullets....
250gr HSM hard lead bullet/sabot
105/v....1742
105/v....1790
To have made this test more scientific I should have ran tc loader against the traditions in field test and then compared them both to the rcbs scale per weight...
Another day....
TC Powder Measurer, Tradition Pellet Loader, RCBS 10.10 scale
Per grain volume is approximately 9gr by weight...
But the variance is the grain size and compactibility...
Traditions Pellet Loader volume to wt..
V/W
120/94.2
110/86.3
100/80.7
90/71
80/64.5
70/55.15
60/47.7
Thompson Center measurer/wt
120/108.5
110/98.4
100/88.6
90/79.9
80/70.5
70/62.4
60/54.1
Variance in loading scales by volume
TC/Traditions
120/130
110/120
100/110
90/100
80/90
70/80
60/70...
So there is definitely a big enough variance between the two loader scales to cause significant differences in poi....although...the TC can be tapped to compact the powder very easily where as the Traditions cannot be compacted as easily...
I did not test the compacted TC... but I dont see being able to compact another 10 grains by volume....
460gr..lee paperpatched bullet
80gr/weight...1553 fps
70gr/volume..........1281
60gr/v.....................1057
....ran out of bullets...
250gr lehigh/sabot
100gr/wt....2047
105gr/v...1884 & 1840
...ran out of bullets....
250gr HSM hard lead bullet/sabot
105/v....1742
105/v....1790
To have made this test more scientific I should have ran tc loader against the traditions in field test and then compared them both to the rcbs scale per weight...
Another day....