02-07-2022, 12:38 AM
(This post was last modified: 02-07-2022, 12:44 AM by r.tenorio671.
Edit Reason: Clarity
)
...forgot to include my results of the 105 RDF's that I loaded w/748. These loads should be taken with a healthy dose of skepticism. These were my 1st attempt at loading my converted brass using the dregs of 748 left in the cannister. I had to pull all of the rounds once I determined my digital scale was acting up due to a dying battery. I dumped all the powder and re-weighed all charges after inserting a new battery. Despite having emptied powder, I observed some granules were still in most of the cases, not sure if it was due static electricity or what. but dropped the charge weights down quite a bit to use up the components for first rounds down the tube when testing build function. The listed charge weights could vary for + - .01 to .02 due the "stuck" granules and probably why the large variations in FPS, but it gives an idea of potential performance. It should be noted brass looked great afterwards, pretty normal truth be told. Same CBOT & COAL numbers as listed or the Lever tests.
25.5 = 2325, 2330, ERR, ERR, ERR = 2328 fps avg
26.0 = 2416, 2505, 2572, 2598, 2412 = 2506 fps avg
26.5 = 2651, 2711, 2560, 2788, 2738 = 2689.6 fps avg
27.0 = 2515, 2514, 2506, 2835, 2530 = 2580 fps avg
That 27.0 load was the anomaly, but I have seen it in the past with other calibers that a higher charge weight would sometimes start trending downward. If I had to resort to W748 in the future, I would work with that 26.5 charge as it gets me close to my 2700 fps objective.
YMMV, so work up your load safely.
25.5 = 2325, 2330, ERR, ERR, ERR = 2328 fps avg
26.0 = 2416, 2505, 2572, 2598, 2412 = 2506 fps avg
26.5 = 2651, 2711, 2560, 2788, 2738 = 2689.6 fps avg
27.0 = 2515, 2514, 2506, 2835, 2530 = 2580 fps avg
That 27.0 load was the anomaly, but I have seen it in the past with other calibers that a higher charge weight would sometimes start trending downward. If I had to resort to W748 in the future, I would work with that 26.5 charge as it gets me close to my 2700 fps objective.
YMMV, so work up your load safely.