280ai 175 accubond

[graybullet]

Have any of you tried this combo? I'm trying to get away from the big mags. I hunt deer under 500 yards.

 

[Booney]

Better have at least a 1-7 or 1-6.5

http://www.longrangehunting.com/forums/f19/nosler-lr-accubonds-bc-testing-results-137554/

But with the right twist I think that could be sweet

 

[Shumba]

Better have at least a 1-7 or 1-6.5

http://www.longrangehunting.com/forums/f19/nosler-lr-accubonds-bc-testing-results-137554/

But with the right twist I think that could be sweet

What twist? I believe you might have made an error on the twist rates.

 

[J E Custom]

In my opinion,The 160 Accubonds are better suited for the 280 because of the case capacity and velocity. They are deadly on deer and Elk size game and even the 140s are excellent.

The 280 will handle the 175s and 180 grain bullets well but the velocity/trajectory will suffer.

Also,Twist should be a 1 in 9 for all round performance.

Just a recommendation.

J E CUSTOM

 

[MudRunner2005]

In my opinion,The 160 Accubonds are better suited for the 280 because of the case capacity and velocity. They are deadly on deer and Elk size game and even the 140s are excellent.

The 280 will handle the 175s and 180 grain bullets well but the velocity/trajectory will suffer.

Also,Twist should be a 1 in 9 for all round performance.

Just a recommendation.

J E CUSTOM

I agree. Optimal performance for the case capacity of the .280 AI would be around the 160-168 grain bullets. When I finally build mine, I will be using a standard throated reamer, and shoot the Berger 168 VLD's, and it will have a 26" 1:9 twist barrel.

 

[Booney]

No from what Bryan says to get max B.C. Out of the 175 you would need at least a 1-7 and I think even then it was only at 91%.

 

[TOM H]

No from what Bryan says to get max B.C. Out of the 175 you would need at least a 1-7 and I think even then it was only at 91%.

This is from the above test that Bryan did.

In summary, the Nosler LR Accubonds are a dramatic improvement over the standard Accobonds in terms of BC's which is a great thing for long range hunters. However you do need to be aware of the stability requirements for these long bullets and aim for a stability factor of 1.5 or higher.

 

[7mmShooter]

1-8.5" would likely be enough to easily get the full B.C value for said bullets. The percentages were comparing Bryan's test results to Nosler advertised B.C figures for said bullets.

 

[bbraden]

My 280AI has a 25" benchmark 1:8.5 and it stabilizes 180gr Hybrids just fine. I would think it would be enough for 175's as well. I get 2850 with 62.0gr H1000, but it seems like my sweet spot is around 2890.

At some point I will probably back down to 168 hunting or 168gr Barnes LRX as I agree the 280AI is probably better off in the 140-168 range.

 

[6.506ai]

In my opinion,The 160 Accubonds are better suited for the 280 because of the case capacity and velocity. They are deadly on deer and Elk size game and even the 140s are excellent.

The 280 will handle the 175s and 180 grain bullets well but the velocity/trajectory will suffer.

Also,Twist should be a 1 in 9 for all round performance.

Just a recommendation.

J E CUSTOM

I run 180eldms in my 280ai 1:8.8 twist doing 2900.

 

[J E Custom]

I agree. Optimal performance for the case capacity of the .280 AI would be around the 160-168 grain bullets. When I finally build mine, I will be using a standard throated reamer, and shoot the Berger 168 VLD's, and it will have a 26" 1:9 twist barrel.

Good plan.
The 280 AI comes into it's own with this range of bullet weights. with the heaver bullets, it is bested by the 7 RM but with the 160 class, the efficiency of the AI allows it to exceed the 7 RM in velocity and trajectory. Lots of people shoot the 180s in their 280AIs and have very good luck with them, but all cartridges seam to have one optimum bullet weight and I believe the 160 class bullets are it for the 280 AI.

I also believe that the 1 in 9 twist is perfect for almost all bullets.

Just my opinion

J E CUSTOM