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Question:
What is the "Sweet Spot" setting for my BOSS equipped rifle?

Answer:

The following are suggested "Sweet Spot" settings for Browning rifles that have the optional BOSS (Ballistic Optimizing Shooting System) .  New loads and bullet weights may need different settings.  This chart is only a guide.


Suggested "Sweet Spots"
 

Caliber Bullet Weight Ammo Manufacturer A-Bolt
Average
Sweet Spot*
BAR
Average
Sweet Spot
375 H&H 270   2.3  
375 H&H 300   4.5  
338 Win. Mag. 250 Federal 6.75 4.25
338 Win. Mag. 230 Winchester 5.25  
338 Win. Mag. 225 Federal 5.25 0.5
338 Win. Mag. 210 Federal 4 1
338 Win. Mag. 200 Federal 3.25 3.25
325 WSM 220 Winchester 1.0  
325 WSM 200 Winchester 10.0  
325 WSM 180 Winchester 9.8  
300 Win. Mag. 220 Winchester   6
300 Win. Mag. 200 Federal 3-3.5 3
300 Win. Mag. 190 Winchester   4
300 Win. Mag. 180 Winchester   4
300 Win. Mag.
(for A-Bolt II M1000 only)
180 Winchester 9  
300 Win. Mag. 180 Federal 8.5 3
300 Win. Mag. 178 Remington 1  
300 Win. Mag. 165 Hornady 1 1
300 Win. Mag.
(for A-Bolt II M1000 only)
165 Hornady 3  
300 Win. Mag. 150 Winchester 9 9
300 Win. Mag.
(for A-Bolt II M1000 only)
150 Federal 1.5  
300 Win. Mag. 140     1
300 Win. Mag.   Fail Safe (Black Talon)   4
30-06 Springfield 220 Winchester 10-10.5 7
30-06 Springfield 180 Hornady 10 5.25
30-06 Springfield 180 Federal 5 5
30-06 Springfield 175 Federal 7.2  
30-06 Springfield 165 Federal   2
30-06 Springfield 165 Winchester   2.5
30-06 Springfield 165 Hornady 3 3
30-06 Springfield 150 Hornady 3 2.25
30-06 Springfield 150 Federal 1.5 2
300 WSM 150gr. BST Winchester 1 0.5
300 WSM 180gr. PP Winchester 1 1
300 WSM 180gr. FS Winchester 3 10
308 Win. 200   3.25  
308 Win. 180 Federal 5.25 5
308 Win. 168 Hornady 4 3.5
308 Win.
(for A-Bolt II Varmint only)
168 Hornady 4-4.25  
308 Win. 150 Federal 2.5 2.5
308 Win.
(for A-Bolt II Varmint only
150 Federal 2.5  
280 Rem. 165 Remington 6  
280 Rem. 150 Federal 5.0   
280 Rem. 140 Federal 4  
7mm Rem. Mag. 180 Federal   5
7mm Rem. Mag. 175   8 5
7mm Rem. Mag. 168 Hornady   3
7mm Rem. Mag. 165 Federal 6-6.5 6
7mm Rem. Mag. 162 Hornady 5.75 5.75
7mm Rem. Mag. 160 Federal 5.75 3.5
7mm Rem. Mag. 160 Nos. Part 4 3.5
7mm Rem. Mag. 150 Federal 2-3 2
7mm Rem. Mag. 154 Hornady 5.75 5.75
7mm Rem. Mag. 140   2.5 1.5
7mm Rem. Mag. 139 Hornady 2.5 2.5
7mm Rem. Mag. 120 Hornady 1 1
7mm WSM 140gr. BST Winchester 1.25 6.5
7mm WSM 150gr. PP Winchester 4 0.5
7mm WSM 160gr. FS Winchester .5 0.0
7mm-08 Rem. 140   2.0  
7mm-08 Rem. 120   1.0  
7mm-08 Rem. 130   1.8  
270 Win. 150 Federal 6 4
270 Win. 140 Remington 3-3.5 3
270 Win. 130 Federal 2.5 2
270 Win. 100 Remington 1 0
270 WSM 130gr. BST Winchester 1.25 2
270 WSM 140gr. FS Winchester 2 7
270 WSM 150gr. PP Winchester .3 8
260 Rem. 140   .5  
260 Rem. 120   2  
25 WSSM 85gr. BST Winchester 1  
25 WSSM 115gr. BST Winchester 1  
25 WSSM 120gr. PEP Winchester 0  
25-06 Rem. 122   6  
25-06 Rem. 117 Federal 6  
25-06 Rem. 100 Hornady 3.5  
25-06 Rem. 90 Winchester 2.25  
25-06 Rem. 85 B Tip. 2.6  

243 WSSM

55 gr. BST Winchester .5  
243 WSSM 95 gr. BST Winchester 1.5  
243 WSSM 100 gr. PP Winchester 6.3  
243 Win. 100 Winchester 5 2.5
243 Win. 80 Federal 3 2.25
243 Win. 85      
223 WSSM 55 Gr. BST Winchester 8  
223 WSSM 55 Gr. PSP Winchester 10  
223 WSSM 64 Gr. PP Winchester 9.5  
.223 Rem. 55 Federal 7  
223 Rem. 53 Federal 6.5  
223 Rem.
(for A-Bolt II Varmint only)
40 Winchester 4  
223 Rem. 40 Winchester 4  
22-250 Rem. 55   5.5  
22-250 Rem. 52 Winchester 4  
22-250 Rem.
(for A-Bolt II Varmint only)
52 Winchester 5  
22-250 Rem.
(for A-Bolt II Varmint only)
40 Federal 4  
22-250 Rem. 40 Federal 2.5  

More information on the BOSS can be found here.

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