Browning A-Bolt 280AI Build

[CaptDru]

I am getting my Browning A-BOLT rebarreled to a 280AI. My gunsmith called and said he is about 2-3 weeks from chambering the barrel. It is a 26" 1:8 Shilen in a #4 or 5 contour, cant remember. I plan to shoot 160-175grn bullets with RL23 and Peterson cases. Question is, should I get it throated for the 175's, 160's or leave it to SAAMI specs? Any advice is appreciated.

 

[Leaf Litter]

If you're shooting 160s, get it chambered for those, otherwise you'll rue the jump when shooting lighter bullets. The 175s will still load just fine.

 

[6xshooter]

I'd go with saami. I have one shoot Berger 168's.

 

[howco]

8 twist RL23 and SAAMI.........mission complete

 

[bowshot]

cool build, I have a 280 abolt for this exact project. 24" Bob Jury barrel, #2 contour throated for 160-162 grain bullets, 1:9 twist.
I have the same barrel in 7 mag that shoots awesome with 168 Nosler lrab

 

[VinceMule]

I shoot the 175g Nosler LRAB with 56g of IMR 7828, Federal 210*, PMC and Lapua 30/06 formed brass and shoot dots with the SAAMI chamber.

Browning mags are not very long, and I would not lengthen throats.

 

[CaptDru]

I shoot the 175g Nosler LRAB with 56g of IMR 7828, Federal 210*, PMC and Lapua 30/06 formed brass and shoot dots with the SAAMI chamber.

Browning mags are not very long, and I would not lengthen throats.

I would have to modify the mag box, which isn't a big deal. What speeds are you getting?