280AI 168gn or 180gn

Joined
Oct 13, 2012
Messages
9
Hi Team

I have a custom Built Dan Hardy 280AI Long Range Rig with 26" 1:8 Barrel suppressed,
Im Shooting 180 Berger's using 56.5gn of ADI powder and only getting 2640ft if I go to 57gn and the primer is starting to crown as it flows into the firering pin although the primers are still slightly rounded (is this too hot?)

I stopped at 57.5gn which cronyed at 2675fps before going back to 56.5gn
I was really hoping to get at least 2700fps can I push to 58+gn or do I need to see if The 168gn will give me less wind deflection due to its farster Velocity

At what velocity do we need to get the 180 bergers to before they out preform the 168s in the 280AI in Wind deflection

Thanks
 

LRangepro

Member
Joined
Oct 1, 2007
Messages
19
Did you ever get it shooting better? 180s aren't that much better than 168s at 280AI velocity...but you should be able to beat 2640, however, every barrel is different...some might not do it without pressure. the 8 twist is hurting you too. I have a 27" 9 twist and I get over 3000 pretty easy.
 

Nightforce has great tracking capabilities, they are rugged, a bunch of elevation, holds zero forever, and reticles are designed for long range shooting. So if you are looking to shoot long distances constantly, then you need a scope that can take the abuse. -- gilmillan1


Culture Of Excellence At Nightforce Optics
By Len Backus

A high level of quality both in production and in service. Read More


Nightforce is such a solid combo of reticle, available elevation, glass that is good enough to shoot at the longest range you can dial. Nightforce has bullet proof construction that can handle the incidental horse rolling or some other rodeo action. -- bigngreen


Nightforce ATACR Scope Review
By Jeff Brozovich

The new NightForce ATACR is for sure a top choice for any long range shooter. Read More


The total package. Nightforce is the best I have used as far as turret feel and solid detents. I have never had one that didn't track right on and always return to zero. Nightforce NXS is the best value for everything I need. -- Broz


Nightforce Velocity 1000 Reticle Review
By Scott Shreve

I think Nightforce knocked it outta the park with this reticle! Read More

NightForce


Top