Had some fun today. 2 rifles used. A 24" AA Overwatch and a Bartlein 20".
All Lapua brass and AA 2520 powder. (Except Hornady ammo!) 123 AMAX. 5 shot groups. 100 yds. 65 deg F. SEA LEVEL.
24" Overwatch. CCI 450 29.4 g (my load)
GROUP 1. 2600, 2619, 2644, 2656, 2659 no ES OR SD
GROUP 2. 2671, 2602, 2588, 2612, 2604 no ES OR SD
24" Overwatch. CCI 450 29.1 g
GROUP 1. LOW 2569 HIGH 2593 AVE 2585 ES 24.2 SD 9.4
GROUP 2. LOW 2578 HIGH 2615 AVE 2589 ES 36.7 SD 15.2
GROUP 3. LOW 2586 HIGH 2605 AVE 2592 ES 18.9 SD 7.7
24" Overwatch. FED 205M 29.1 g
GROUP 1. LOW 2562 HIGH 2609 AVE 2585 ES 47.5 SD 17.7
GROUP 2. LOW 2548 HIGH 2607 AVE 2586 ES 58.7 SD 22.8
24" Overwatch. Hornady 123 AMAX factory ammo.
GROUP 1. LOW 2565 HIGH 2631 AVE 2596 ES 65.8 SD 23.9
GROUP 2. LOW 2585 HIGH 2622 AVE 2612 ES 36.4 SD 15.2
20" BARTLEIN. CCI 450 29.1
GROUP 1. AVE 2509 ES 26 SD 10
20" BARTLEIN. HORNADY 123 AMAX factory
GROUP 1. AVE 2513 ES 33 SD 12
The Hornady ammo had gold primers which may have been Tulammo. I was not impressed with the factory ammo. It was the first time either rifle had shot this ammo.
The 29.1 g with the CCI 450 primers had actually 2 pretty good groups out of the 24".
Sorry no photo of the 20" targets. The results were pretty average. Those black circles in the targets are 1" BTW.
One thing we did prove was about a difference of 80 FPS between the 24" and the 20".
I have saved the Hornady brass and is in the tumbler right now. I have access to some Tulammo primers and will try that combo with 29.1 g next time.
All Lapua brass and AA 2520 powder. (Except Hornady ammo!) 123 AMAX. 5 shot groups. 100 yds. 65 deg F. SEA LEVEL.
24" Overwatch. CCI 450 29.4 g (my load)
GROUP 1. 2600, 2619, 2644, 2656, 2659 no ES OR SD
GROUP 2. 2671, 2602, 2588, 2612, 2604 no ES OR SD
24" Overwatch. CCI 450 29.1 g
GROUP 1. LOW 2569 HIGH 2593 AVE 2585 ES 24.2 SD 9.4
GROUP 2. LOW 2578 HIGH 2615 AVE 2589 ES 36.7 SD 15.2
GROUP 3. LOW 2586 HIGH 2605 AVE 2592 ES 18.9 SD 7.7
24" Overwatch. FED 205M 29.1 g
GROUP 1. LOW 2562 HIGH 2609 AVE 2585 ES 47.5 SD 17.7
GROUP 2. LOW 2548 HIGH 2607 AVE 2586 ES 58.7 SD 22.8
24" Overwatch. Hornady 123 AMAX factory ammo.
GROUP 1. LOW 2565 HIGH 2631 AVE 2596 ES 65.8 SD 23.9
GROUP 2. LOW 2585 HIGH 2622 AVE 2612 ES 36.4 SD 15.2
20" BARTLEIN. CCI 450 29.1
GROUP 1. AVE 2509 ES 26 SD 10
20" BARTLEIN. HORNADY 123 AMAX factory
GROUP 1. AVE 2513 ES 33 SD 12
The Hornady ammo had gold primers which may have been Tulammo. I was not impressed with the factory ammo. It was the first time either rifle had shot this ammo.
The 29.1 g with the CCI 450 primers had actually 2 pretty good groups out of the 24".
Sorry no photo of the 20" targets. The results were pretty average. Those black circles in the targets are 1" BTW.
One thing we did prove was about a difference of 80 FPS between the 24" and the 20".
I have saved the Hornady brass and is in the tumbler right now. I have access to some Tulammo primers and will try that combo with 29.1 g next time.
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