184 - 7 SAUM load development.

[DanielMaple]

couldn’t find any load data for the 184-f 7Saum so decided to do my own work. This is posted for informational purposes and may not work for you. Please work up your own loads carefully.
Please give your suggestions what load's you would explore. Looking for a high and low node to play with from each of the 3 powders.

Rifle. SAAMI chamber / Defiance anti x SA / proof elevation MTR stock, TT Diamond, Wyatt's box, TI pro brake , spartan bipod, NX8 4x32- 22" 1:8 TW proof. 800ish rounds



Brass ADG started 3x ended 4x, amp annealed, Henderson trimmed, bumped .0015 SAC Modular Die, 2815 mandrel.
Bullet 184-f. COAL 2,9640

Radar: Andiscan a2 (within 3-4fps Labradar and magneto speed)

Powder dispenser: SuperTrickler. Loaded +/- .02

Powders: / charge.

H4831sc 1 shot 57 grain 2703 - 3 at 57.75
2730 ish. 1" group clickers, heavy bolt, extractor marks. Didn't explore further.

N560 - 34 degrees
57-59.75 / 2646 to 2785 Pressure at 59.25 heavy pressure 59.75.



N565 41-degrees61-62.75 / 2717 to 2888. Light clicker 62.5. Extractor mark at 62.75.




H1000 45-degrees.
60.1-63 / 2724 - 2805 light clicker 62.77 moderate clicker 63.




I was up and down with young boys throughout the test, so multiple cold bore shots and constant mounting.H1000 groups were impacted by loose brake I didn't notice until 5th round of N565. So take that into account.

Interesting, bullets across the powders seemed to have same POI at a given velocity.

Seems like the best balance of node/SD/ES/accuracy was between 2695-2750.

I chose a low charge of 60.86 H1000 to test 5 shots.


Thoughts, input on additional loads loads to test are welcomed

 

[zacko]

Nice work mate, beauty rifle .

That seems long for saami I'm loaded at 2,935 and im roughly 100thou longer than saami I had mine throated for the 168vld recently changed to the 180 eldm still loaded at 2,935 which puts alot of bullet in the case superbly accurate.

Looks like it's going very well so far iv found fed 210s best for me

Zac

 

[DanielMaple]

couldn’t find any load data for the 184-f 7Saum so decided to do my own work. This is posted for informational purposes and may not work for you. Please work up your own loads carefully.
Please give your suggestions what load's you would explore. Looking for a high and low node to play with from each of the 3 powders.

Rifle. SAAMI chamber / Defiance anti x SA / proof elevation MTR stock, TT Diamond, Wyatt's box, TI pro brake , spartan bipod, NX8 4x32- 22" 1:8 TW proof. 800ish rounds

View attachment 537659

Brass ADG started 3x ended 4x, amp annealed, Henderson trimmed, bumped .0015 SAC Modular Die, 2815 mandrel.
Bullet 184-f. COAL 2,9640

Radar: Andiscan a2 (within 3-4fps Labradar and magneto speed)

Powder dispenser: SuperTrickler. Loaded +/- .02

Powders: / charge.

H4831sc 1 shot 57 grain 2703 - 3 at 57.75
2730 ish. 1" group clickers, heavy bolt, extractor marks. Didn't explore further.

N560 - 34 degrees
57-59.75 / 2646 to 2785 Pressure at 59.25 heavy pressure 59.75.
View attachment 537661
View attachment 537662

N565 41-degrees61-62.75 / 2717 to 2888. Light clicker 62.5. Extractor mark at 62.75.

View attachment 537663
View attachment 537664

H1000 45-degrees.
60.1-63 / 2724 - 2805 light clicker 62.77 moderate clicker 63.

View attachment 537673
View attachment 537675

I was up and down with young boys throughout the test, so multiple cold bore shots and constant mounting.H1000 groups were impacted by loose brake I didn't notice until 5th round of N565. So take that into account.

Interesting, bullets across the powders seemed to have same POI at a given velocity.

Seems like the best balance of node/SD/ES/accuracy was between 2695-2750.

I chose a low charge of 60.86 H1000 to test 5 shots.
View attachment 537677

Thoughts, input on additional loads loads to test are welcomed

Doesn’t seem to be much interest it the 184-f, but I thought I’d post my results.
Went with 59.95 H1000. I shot at 385 yards today. Winds were gusting 5-25 quartering from my left. Only shot 3. Drop/vertical was good but I was off .25 MOA right. (Pic 1)
Went shot 4 confirmed off right (pic 2).
Adjusted.25 - shot 9 (pic 3)

Happy with the load so far. 20 shot SD 4.8 /es 13. 2728 average. Going to take it out to 1k and see if it holds up.