Who has messed with sub sonic BMG loads and what were the results?
I have a bolt action .50 BMG so cycling is not a issue.
.50 BMG Subsonic bolt guns?
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.50 BMG Subsonic bolt guns?
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BA50 - HTG .50 BMG HERCULES
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BA50 - HTG .50 BMG HERCULES
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Subsonic .50 BMG
Hi everyone,my first post!!!
33.5grn of Red Dot, M-2 690grn horse pill at 952fps
Mcmillan Tac-50 29" pipe, 1-15 twist
Bullet Stability Calculation, 1.98 Bullet is maximally Stabilized.
I get 46fps of boost from AAC-CYCLOPS Total Velocity 998fps
Velocity x Velocity x Bullet Weight in Grains / 450240 = 1526ftlbs energy.
see video on YouTube "AAC 50"
33.5grn of Red Dot, M-2 690grn horse pill at 952fps
Mcmillan Tac-50 29" pipe, 1-15 twist
Bullet Stability Calculation, 1.98 Bullet is maximally Stabilized.
I get 46fps of boost from AAC-CYCLOPS Total Velocity 998fps
Velocity x Velocity x Bullet Weight in Grains / 450240 = 1526ftlbs energy.
see video on YouTube "AAC 50"
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- jimmym40a2
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Re:
I have a McMillan 50 and just picked up a .50 reloading setup. Few newbie questions:GHIVELY50BMG20MM wrote:Pulled my reloading notes for 50bmg Red Dot
55gr 1392fps No signs of pressure
50gr 1307fps
45gr 1225fps
40gr 1163fps
35gr 1008fps
30gr 830fps Did not seal neck
33.5gr 952fps Neck has good seal
1)Did you crimp case after seating bullet?
2)What was the case powder volume with that load(33.5gr)(ie. 30% or more etc.)?
3)Any flash hole modifications(over sizing)?
4)Powder selection reason? Tried any other powders with any success?
5)Bullet selection reason(Tried any others)?
THX!
Great video!!!
Re: .50 BMG Subsonic bolt guns?
22 inch barrel, bolt, 1- 15 twist, CCI-35 primers
647 gr Barnes TAC-X, #30695. OAL - 5.205.
Trail Boss 44 Grains, 22 round sample
V average 1024
V max 1045
V min 1005
Red Dot 38 Grains, 10 round sample
V average 1030
V max 1055
V min 1015
At 100 yards I am getting key holes, but JBM stability indicates greater than 2 for stability.
Does the JBM number indicate more stable the higher the number or is around 2 - 3 optimal?
Definite key holes with both of the above loads with Trail Boss at 45 gr and Red Dot at 39 gr.
647 gr Barnes TAC-X, #30695. OAL - 5.205.
Trail Boss 44 Grains, 22 round sample
V average 1024
V max 1045
V min 1005
Red Dot 38 Grains, 10 round sample
V average 1030
V max 1055
V min 1015
At 100 yards I am getting key holes, but JBM stability indicates greater than 2 for stability.
Does the JBM number indicate more stable the higher the number or is around 2 - 3 optimal?
Definite key holes with both of the above loads with Trail Boss at 45 gr and Red Dot at 39 gr.
Last edited by paper9 on Wed Mar 16, 2016 8:01 pm, edited 2 times in total.
- T-Rex
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Re: .50 BMG Subsonic bolt guns?
If any of you guys are near CT, I have about 18lbs of Red Dot I'd like to get rid of.
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Re: .50 BMG Subsonic bolt guns?
I'm a little late on this one, but what powders will work? Red dot is shot she'll powder right? Would hodgdon work?