Setting your Rifle to the Sweet Spot

Full turn "sweet spot" settings or graduations arc-numbered I-10 and inscribed on the barrel of your rille (See Figure 4). Smaller. 1/10 turn increments are inscrilxxl on the micrometer adjustment ring (See Figure S). To set the "sweet spot.' the micro-adjustable locknut is turned either clockwise or counterclockwise until it is aligned with the desired "sweet spot'' number inscribed on your rifle's barrel. One full revolution of the micro-adjustable locknut indicates one full change in setting or one index mark on the barrel. 1/10 turn increments are set by rotating the micro-adjustable locknut until the desired setting lines up with the hatch mark on the barrel.

Spot Your Boss Picture
Figure 7
Adjusting The Browning BossBrowning Boss Settings

NOTE: It is not necessary to calíbrate vour

BOSS on the barrel with each change in "sweet spot" setting. However, you should check the BOSS periodically to assure proper alignment.

3 Since the "sweet spot" is listed at 6.0. the 0 inscribed on the micrometer adjustment ring should line up with the hatch mark or longitudinal line on the barrel (See Figure 6).

4 Tighten the body of the BOSS so it. is secure against the micro-adjustable locknut, LJse the special wrench supplied with your rifle. Insert

IMPORTANT: When adjusting the "sweet spot' make sure you grip the knurled surface of the locknut. The knurled portion of the micro-adjustable locknut and micrometer adjustment ring must rotate together to ensure a precise "sweet spot* setting and retainment of proper calibration.

CAUTION: WHEN SETTING THE "SWEET SPOT" ON YOUR RIFLE MAKE CERTAIN YOUR RIFLE IS FULLY UNLOADED AND THAT THE RIFLE'S SAFETY IS IN THE "ON SAFE" POSITION AND YOUR RIFLE IS POINTED IN A SAFE DIRECTION.

1 Suppose you have a 270 caliber A-Bolt 11 rifle and are sighting in with 150 gr. cartridges. Referring to the "sweet spot" chart you will find the average "sweet spot" is 6.0 for a 270 A-Bolt II with 150 gr. ammo.

2 After having made sure your BOSS is calibrated properly on the barrel, rotate the micro-adjustable locknut counterclockwise six full revolutions. The edge of the micrometer adjustment ring should line up or rest on the marking for 6 on the barrel of the rifle.

the wrench through one end of an exhaust hole and out through another. It is recommended to insert the wrench through the smallest set of holes possible. Turn clockwise until the body and micro-adjustable locknut are tight (See Figure 7).

CAUTION: REMOVE THE WRENCH FROM THE BOSS EXHAUST HOLES BEFORE FIRING YOUR RIFLE. FAILURE TO DO SO CAN CAUSE INJURY TO YOURSELF OR OTHERS.

1 Suppose you have a 300 Win. Mag. BAR Mark II rifle with Federal 180 gr. cartridges. Referring to the "sweet spot" chart you will find the average <:sweet spot" is 2.3.

2 Calibrate your BOSS and rotate the micro-ad-justable locknut counterclockwise until the edge of die micrometer adjustment ring lines up or rests on the marking for 2 on the barrel.

3 Since the "sweet spot* is listed as 2.5, the 5 inscribed on the micrometer adjustment ring should line up with the hatch mark or vertical line on the barrel (See Figure 8).

Boss Sweet Spot Chart

Example 1

Biirrcl Mounting Screw Trigger Guard Screw

Nylon Locking Device

Browning Boss Settings
CAUTION: WHEN ADJUSTING THE SWEET SPOT NEVER SET THE BOSS BEYOND THE 10 SETTING.

With the BOSS set beyond 10, the BOSS could become loose, misaligned or fall off when firing the rille. This could result in serious injury to yourself or others. »

IMPORTANT: Each time you set the 'sweet spot: the body of the BOSS must be tight against the micro-adjustable locknut. Failure to keep the components tightly locked will adversely affect

Biirrcl Mounting Screw Trigger Guard Screw

Nylon Locking Device

•i Using the special wrench, tighten the body of the BOSS so it is secure against the locknut.

Your BOSS system is now calibrated for Fed-*

eral 180 gr. ammo using a 300 Win. Mag. BAR Mark 11.

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Responses

  • briffo
    How to calibrate your boss on rifle?
    9 years ago
  • merico baresi
    How to adjust the boss on browning firearms?
    6 years ago
  • JESSICA BUSCH
    How to find the sweet spot of your rifle?
    4 years ago
  • drogo
    How to calibrate a browning boss system?
    4 years ago
  • Sandro
    How to tune your boss system for 300 Win mag?
    3 years ago
  • victor
    What is the sweet round for a .270?
    3 years ago
  • Mattiesko Pakarinen
    How to adjust browning boss system?
    3 years ago
  • ELOY
    How to fine tune boss/CR on a Browning Abolt 7mm mag?
    2 years ago
  • gimja
    How to remove boss system from browing rifle?
    11 months ago
  • David
    How to adjuct the browning boss system on a 300 win. mag.?
    6 months ago
  • vigo
    How to tune a browing bar 300 WM boss system?
    3 months ago
  • tanta
    How to calabrate boss on browning?
    3 months ago

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