125 gr 9mm pulled HSTs...

[MurphyD]

Hello everyone I'm in need of a little help. So I recently purchased 500 9mm 125 gr pulled HSTs and I'm having trouble trying to work up a load. I'm trying to replicate factory specs. I don't have quickload but I was just wanting to see if someone out there could punch in some numbers for me if it wouldn't be too much trouble.

So here's what I have:
Bullet oal: .584"
Powder: Alliant BE-86
COAL: 1.100"
Barrel length: 4.14"
My goal
* to get velocity around 1150 fps.

I know that this is a newer powder and might not be in quickloads but if anyone could help it would be much appreciated. Thank you.

 

[Dudedog]

I think Alliants BE86 data is on the hot side.
They list 5.9 as a MAX I quit a bit before there.
I think somewhere around 5.5 grains will get you where you want to be.
Can't find my 5.7 numbers at the moment but 5.7 was over 1200fps.
Mixed range brass, S+B SP 5" 9mm 1911, RMR Plated 124 RN
Charges as thrown after setting measure
String: 3
Date: 3/31/2017
Time: 3:10:32 PM
Grains: 124
Hi Vel: 976
Low Vel: 957
Ave Vel: 966
Ext Spread: 19
Std Dev: 7
RMR 124 1.12 OAL BE86 4.5
Velocity Power Factor Ft/Lbs
973 120.652 260.645
957 118.668 252.143
962 119.288 254.785
976 121.024 262.254
965 119.66 256.376



String: 3
Date: 3/31/2017
Time: 3:14:34 PM
Grains: 124
Hi Vel: 1070
Low Vel: 1045
Ave Vel: 1054
Ext Spread: 25
Std Dev: 10
RMR 124 1.12 OAL BE86 4.9
Velocity Power Factor Ft/Lbs
1070 132.68 315.203
1051 130.324 304.109
1048 129.952 302.375
1059 131.316 308.756
1045 129.58 300.646

String: 4
Date: 3/31/2017
Time: 3:15:43 PM
Grains: 124
Hi Vel: 1112
Low Vel: 1080
Ave Vel: 1093
Ext Spread: 32
Std Dev: 12
RMR 124 1.12 OAL BE86 5.1
Velocity Power Factor Ft/Lbs
1112 137.888 340.434
1099 136.276 332.521
1089 135.036 326.497
1088 134.912 325.898
1080 133.92 321.123

String: 5
Date: 3/31/2017
Time: 3:17:17 PM
Grains: 124
Hi Vel: 1135
Low Vel: 1087
Ave Vel: 1115
Ext Spread: 48
Std Dev: 17
RMR 124 1.12 OAL BE86 5.3
Velocity Power Factor Ft/Lbs
1135 140.74 354.662
1117 138.508 343.502
1118 138.632 344.118
1087 134.788 325.299 This one skewed the numbers wonder if I got a 5.1 mixed in
1120 138.88 345.35

String: 6
Date: 3/31/2017
Time: 3:18:05 PM
Grains: 124
Hi Vel: 1180
Low Vel: 1143
Ave Vel: 1158
Ext Spread: 37
Std Dev: 14
RMR 124 1.12 OAL BE86 5.5
Velocity Power Factor Ft/Lbs
1180 146.32 383.343
1163 144.212 372.377
1160 143.84 370.458
1143 141.732 359.68
1146 142.104 361.57

This was a "normal" lot of BE86, I had one lot that gave the same vels with .1-.2 gr less than my "normal" lots.
Hope this helps

 

[JustAnotherJim]

I'm not trying to be a buzzkill, but if they are truly 125's they are probably 357sig bullets. The factory specs for them will be significantly higher than the 124gr 9mm bullets. It may not matter at all, depending on your intended usage. If you're looking for optimal hollowpoint performance, though, you may not get it at 1150.

 

[rfwobbly]

My testing pretty much matches Dudedog's up to 5.1gr. From other testing I've seen, I also agree with his assessment of 5.5gr.

You still need to work up to that load and hopefully do it over a chrono.

 

[cheygriz]

Load them for range practice, and use factory +P for defence.

 

[Average Joe]

I agree, BE86 load data is on the hot side, I stay almost a full grain below the max, and get very good results, when I go up near the max, it's just too hot for shooting paper. Work up your loads carefully with this powder.