Updated BOSS "sweet spot" info?

Discussion in 'Browning A-Bolt Rifle' started by khigh65, Apr 20, 2020.

  1. khigh65

    khigh65 Copper BB

    Hi all!

    Got an old 1995 Composite Stalker A-Bolt II 300 Win Mag on a deal years ago. Pulled it out recently and started going through it. I'm taking quite a liking to it!

    The Browning BOSS sweet spot info online looks quite dated. I'd like to see what it will do with Federal Gold Medal 190gr. There's not even a generic Federal 190 on the chart.

    Anyone know if a forum, owners group, etc., has an updated chart? Or does anyone have a recommendation for this particular ammo? I'd like to cut down on shoulder pain and wasting $2 cartridges as much as possible.

    Barring either of those, is there a generic recommended process? I'm thinking start at five, go to four and see which way it goes, compare to six, etc.

    Thanks for looking!
  2. MZ5

    MZ5 .270 WIN

    I haven't had my BOSS-equipped A-bolt for some years now, but I recollected the manual to have instructions for how to find the sweet spot for ammo not listed. Does yours not have those instructions?

    I know of no one but Browning who attempts to catalog sweet spots for BOSS-equipped rifles. If I were you, I'd check any sweet spot info given by Browning, simply because ammo manufacturers _may_ change the powder they use over time.
  3. Hairtrigger

    Hairtrigger .270 WIN

    Tuning the Boss is half the fun..... plus there is plenty to be said about practice

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