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A-Bolt w/BOSS and XP3 Ammo

Old 02-25-2008, 03:49 PM
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Default A-Bolt w/BOSS and XP3 Ammo

Hi all... just joined the site and I need to ask if anybody can help me find the "factory sweet spot" for my Browning A-Bolt w/BOSS in 300 WSM and with 180 gr. XP3 Winchester Supreme ammo. I don't want to have to shoot up $150 in ammo to zero my rifle for the XP3s.

Unfortunately, Browning does not list the factory sweet spot for that round. Has anybody herewith an A-Bolt w/BOSS tried to dial in the 180 gr. XP3 bullet in 300 WSM. If so, pls relate your experience.

TIA, cd.
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Old 02-25-2008, 04:12 PM
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Default RE: A-Bolt w/BOSS and XP3 Ammo

Boss systems come with reccomended settings by brand/bullet weight, so check your booklet. I'm considering just taking my boss off and finding a load the bare barrel likes. Though my .300 does shoot great with it.

Maybe can find boss settings at their website....
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Old 02-25-2008, 04:29 PM
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Default RE: A-Bolt w/BOSS and XP3 Ammo

ORIGINAL: salukipv1

Boss systems come with reccomended settings by brand/bullet weight, so check your booklet. I'm considering just taking my boss off and finding a load the bare barrel likes. Though my .300 does shoot great with it.

Maybe can find boss settings at their website....
Nope, not in the booklet... bought mine~2001...before XP3s came out... and Browning doesn't list that loading at their website... and they don't plan to either. [:@]

BTW, salukipv1, Igraduated SIU-C in '74 with an Associate's degreeand in '80 with a Bachelor's degreein Engineering. Lived there from '72 to '81. Left to come work out here in the Seattle area. Are you living there now?
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Old 02-25-2008, 04:29 PM
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Default RE: A-Bolt w/BOSS and XP3 Ammo

Shoot a 3 round group,go 1 whole number higher,repeat while watching group size to shrink,then fine tune to get final adjustment by 1/10 value.
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Old 02-25-2008, 04:31 PM
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Default RE: A-Bolt w/BOSS and XP3 Ammo

ORIGINAL: stalkingbear

Shoot a 3 round group,go 1 whole number higher,repeat while watching group size to shrink,then fine tune to get final adjustment by 1/10 value.
Thanks, stalkingbear... I understand that approach. I was just hoping to shortcut it a bit.
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Old 02-25-2008, 05:16 PM
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Default RE: A-Bolt w/BOSS and XP3 Ammo

They shoot similar to Winchester Ballistic Silvertips. Try the setting for them and you should be close. You will prob have to fine tune from there.
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Old 02-25-2008, 07:30 PM
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Default RE: A-Bolt w/BOSS and XP3 Ammo

RetaksBrowning doesn't list any winchester BOSS loadsweet spotsfor the 300 abolt(exception the M1000 eclipse).


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Old 02-25-2008, 07:45 PM
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Default RE: A-Bolt w/BOSS and XP3 Ammo

ORIGINAL: salukipv1

Boss systems come with reccomended settings by brand/bullet weight, so check your booklet. I'm considering just taking my boss off and finding a load the bare barrel likes. Though my .300 does shoot great with it.

Maybe can find boss settings at their website....
I am not sure if you have considered this, but I bought my .270 w/ boss about 15 or 16 years ago. I loved being able to dial it in, but I did not like the "report" of the shot. For about 30$ I bought the BOSS CR ( conventional recoil ) and I still get the ballistic optimization, but it shoots with standard recoil and no loud report or extra muzzle blast. I have never swapped it back out. I love the gun the way it is now, and it is a tack driver.

God Bless

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Old 02-26-2008, 03:10 AM
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Default RE: A-Bolt w/BOSS and XP3 Ammo

The Browning website says around 4 should be right. Here is the link to it.

http://www.browning.com/faq/detail.asp?ID=109
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Old 02-26-2008, 11:33 AM
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Default RE: A-Bolt w/BOSS and XP3 Ammo

ORIGINAL: Retaks

The Browning website says around 4 should be right. Here is the link to it.

http://www.browning.com/faq/detail.asp?ID=109
Retaks... regarding a setting of "around 4", not sure what you are looking at... here's a C&P from the table you linked... for my caliber.





300 WSM
150gr. BST
Winchester
1
0.5

300 WSM
180gr. PP
Winchester
1
1

300 WSM
180gr. FS
Winchester
3
10

The first number is for an A-Bolt and the second number is for a BAR.

If I follow your previous recommendation that the 180 gr. XP3s are similar to the 150 gr. BSTs, I should start at a setting of 1.0, correct?

TIA, cd.
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