Post by ss30378 on Apr 7, 2024 23:36:15 GMT -5
Ran a few more powders at the long OAL today to see how things behaved.
Same 300g MBC "Hammer" with cci350s and starline brass.
USE DATA AT YOUR OWN RISK!!!
300MP
28.0g @ 1.825" = 1554fps/1608lbs energy
29.0g @ 1.828" = 1578fps/1658lbs energy (slightly compressed)
30.0g @ 1.838" = 1616fps/1739lbs energy (max compressed)
Note: I've used 300mp since it was first released in everything from the 327fed up to the 500 Linebaugh and 500S&W (even used it in my 38 casull glock) and it is a very smooth runner. It seems to give a few less fps per grain than h110/296 but does so at quite a bit lower pressure. The 30-grain load had primers that were less flattened than the short OAL 26g H110 load. This powder seems to excel with heavier long-bearing surface bullets in most rounds I've used it in so I'd be interested to see what this does in long-loaded 350+ grain 44 loads.
AA11FS
26.0g @ 1.825" = 1433fps/1368lbs
27.0g @ 1.825" = 1470fps/1439lbs
28.0g @ 1.825" = 1541fps/1582lbs
Note: AA11 is very similar to h110 and 300mp and also likes to give big numbers with heavy, long-bearing surface bullets. None of the loads were compressed and there was room to go up a bit more should the desire be there (I just ran out of time today to go higher). This powder gave me my highest powered 540g 500 Linebaugh load at 1324fps from my 7.5" BFR.
AA1680
30.0g @ 1.825" = 1340fps/1196lbs
Note: I only ran one load and decided to stop there since it was so far behind and already getting close to max powder capacity. I'll save this for the larger capacity rounds, it is one of my favorites in the 450 bushmaster. Maybe a heavier bullet would make it come alive but I don't think it will compete with the faster powders.
Same 300g MBC "Hammer" with cci350s and starline brass.
USE DATA AT YOUR OWN RISK!!!
300MP
28.0g @ 1.825" = 1554fps/1608lbs energy
29.0g @ 1.828" = 1578fps/1658lbs energy (slightly compressed)
30.0g @ 1.838" = 1616fps/1739lbs energy (max compressed)
Note: I've used 300mp since it was first released in everything from the 327fed up to the 500 Linebaugh and 500S&W (even used it in my 38 casull glock) and it is a very smooth runner. It seems to give a few less fps per grain than h110/296 but does so at quite a bit lower pressure. The 30-grain load had primers that were less flattened than the short OAL 26g H110 load. This powder seems to excel with heavier long-bearing surface bullets in most rounds I've used it in so I'd be interested to see what this does in long-loaded 350+ grain 44 loads.
AA11FS
26.0g @ 1.825" = 1433fps/1368lbs
27.0g @ 1.825" = 1470fps/1439lbs
28.0g @ 1.825" = 1541fps/1582lbs
Note: AA11 is very similar to h110 and 300mp and also likes to give big numbers with heavy, long-bearing surface bullets. None of the loads were compressed and there was room to go up a bit more should the desire be there (I just ran out of time today to go higher). This powder gave me my highest powered 540g 500 Linebaugh load at 1324fps from my 7.5" BFR.
AA1680
30.0g @ 1.825" = 1340fps/1196lbs
Note: I only ran one load and decided to stop there since it was so far behind and already getting close to max powder capacity. I'll save this for the larger capacity rounds, it is one of my favorites in the 450 bushmaster. Maybe a heavier bullet would make it come alive but I don't think it will compete with the faster powders.
