Load Testing: Alliant Sport Pistol powder

[Wobbly]

As of the end of 2020, Sport Pistol has been showing up in Powder Burn Rate Charts.

https://loaddata.com/Article/BurnRateCharts/Powder-Burn-Rate-Chart-NEW/159

[tdogg]

I have two new bullets that I can move to next.  Made it out today and shot some load development.

Equipment
Caliber:  40 S&W
Bullets:  American Reloading 180 RNFP FMJ
Brass:    Blazer
Powder:  Alliant Sport Pistol
Max Velocity:  ~970 fps averaged from Alliant data
Primer:  WSP
OAL:      1.130"
Pistol:    TSO
Qty:      10 rounds each, slow fired 5x group in each TSO
Weather:  36F and clear
Chrono:  Caldwell G1

Load      Avg Vel           SD
4.1gr           868             18
4.3gr           903             21
4.5gr           928             12
4.7gr           956             16

Notes
- Didn't really focus on accuracy but they all shot well enough.
- My USPSA load with be 4.7 gr as it had the best group and decent velocity spread.
- The data doesn't all align, max load ranges from 4.6 - 5 gr

[tdogg]

Bullet #2

Equipment
Caliber:  40 S&W
Bullets:  Precision Bullets 170 RNFP Coated
Brass:    Blazer
Powder:  Alliant Sport Pistol
Max Velocity:  ~1025fps Interpolated from Alliant data
Primer:  WSP
OAL:      1.130"
Pistol:    TSO
Qty:      10 rounds each, slow fired 5x group in each TSO
Weather:  36F and clear
Chrono:  Caldwell G1

Load         Avg Vel           SD
4.5gr           1019             6.7
4.7gr           1052             6.1 Max Load !
4.9gr           1078             8.0 Over Max Load !

Notes
- I started a little too hot with this development.  I was using my historical data along with Alliant data.
- Precision Bullets coating must be slick, I was 1/2 grain lower to make PF than my previous 165 FMJ bullet.
- I will probably load these at 4.6 for my USPSA load, more confirmation work needed

[hardmix]

Great thread. I just picked up some SP to try in my S2. In looking through this thread, it looks like most have settled on loads ranging from 3.8-4.1 on 125/125 gn bullets.

[Wobbly]

Great thread. I just picked up some SP to try in my S2. In looking through this thread, it looks like most have settled on loads ranging from 3.8-4.1 on 124/125gn bullets.

Understand that a lot of those people are loading Sport Pistol for lightly sprung competition pistols. You probably have a good idea what minimum velocity your particular gun requires. Use one of the test ladders that matches your bullet, then the reported velocities will be fairly well duplicated in your gun.

 

[tdogg]

Made it out today and did a work up on a new bullet with my Accushadow 2.  This gun is very accurate and these all shot very well.  These load long compared to other bullets I've used recently.  My push test results averaged a max OAL of 1.142 in the Accu 2 and 1.147 in my SP-01 Tactical!

Equipment
Caliber:  9mm
Bullets:  Gallant 125 gr RN Hi-Tek Coated
Brass:  Mixed
Powder:  Alliant Sport Pistol
Max Velocity:  ~1100 fps averaged from Alliant data (125gn Lead RN)
Primer:  WSP
OAL:  1.120 inch
Pistol:  CZ Accushadow 2 with Trijicon SRO
Qty:  10 rounds each, two 5x slow fired groups
Distance:  10yds
Weather:  40F and clear
Chrono:  Caldwell G1

Load         Avg Vel           SD
3.7gr           1019             10.0
3.8gr           1041             8.9
3.9gr           1057             13.8
4.0gr           1083             12.4
4.1gr           1101             9.8  Max Load!

Notes
- Bullets are ~126 grains on average
- Max Spread over all load development was 0.9 inches
- Best Group was 0.5 inches
- I ran out of light and the final 4 shots didn't get picked up by the chrono (4.1 gr load, so it is only an average of 6 shots)
- I will load at 3.8 grain for my USPSA minor PF load

Cheers,
Toby

[tdogg]

Made it out today and did a work up on a new bullet with my Accushadow 2.

Equipment
Caliber:  9mm
Bullets:  Black Bullet International 125gr Truncated Cone Hi-Tek Coated
Brass:  Mixed
Powder:  Alliant Sport Pistol
Max Velocity:  ~1100 fps averaged from Alliant data (125gn Lead RN)
Primer:  Servicios y Adventuras Small Pistol
OAL:  1.095 inch
Pistol:  CZ Accushadow 2 with Trijicon SRO
Qty:  10 rounds each, two 5x slow fired groups
Distance:  10yds
Weather:  30F, winds 10-15, clear
Chrono:  Caldwell G1

Load         Avg Vel           SD
3.7gr           1073             9.4
3.76gr         1078             9.6
3.8gr           1088             14.2
3.86gr         1096             8.3
3.9gr           1117             9.7  Max Load!

Notes
- Bullets are ~125 grains on average
- These started out way hotter than expected.  I may have to drop down in charge to be closer to 130 pf.  3.6gr should get me there.
- Best Group was 0.6 inches

Cheers,
Toby
[/quote]

[tdogg]

Made it out today and shot the 3.6 grain Sport Pistol Load.

Equipment
Caliber:  9mm
Bullets:  Black Bullet International 125gr Truncated Cone Hi-Tek Coated
Brass:  Mixed
Powder:  Alliant Sport Pistol
Max Velocity:  ~1100 fps averaged from Alliant data (125gn Lead RN)
Primer:  Servicios y Adventuras Small Pistol
OAL:  1.095 inch
Pistol:  CZ Accushadow 2 with Trijicon SRO
Qty:  5 rounds
Distance:  20yds
Weather:  45F, winds 10-15, clear
Chrono:  Caldwell G1

Load         Avg Vel           SD
3.6gr           1042             6.9


Notes
- I shot a freestyle (standing two hand hold grip with no support) 1.5 inch 5 shot group with these at 20yds.
- Power Factor was exactly as expected at 130.2

Cheers,
Toby