280 AI Fixed

[Firefighter]

I had the 280AI, with Shilen Heavy Sporter Barrel, that what I thought after 6-8 rounds it was getting hot and causing bad groups and verticle groups. Took barreled action off stock and found a single scuff mark on the length of the alumminun bedding block caused by the action slightly moving back and forth. This was in a Bells and Carlson stock with the savage action bedding block installed by them. Found the radius of that was much larger than the diameter of the savage action. I bedded the action and now groups very good, about .5 moa at 100 yds. and holds poa 1-10 shots. Thanks for all the suggestions on how to correct this problem. I will be bedding all my rilfles from now on. On this one I just assumed the block was a pre-fit for the action and fit should be good. Thanks Greg

 

[muleman69]

I had the 280AI, with Shilen Heavy Sporter Barrel, that what I thought after 6-8 rounds it was getting hot and causing bad groups and verticle groups. Took barreled action off stock and found a single scuff mark on the length of the alumminun bedding block caused by the action slightly moving back and forth. This was in a Bells and Carlson stock with the savage action bedding block installed by them. Found the radius of that was much larger than the diameter of the savage action. I bedded the action and now groups very good, about .5 moa at 100 yds. and holds poa 1-10 shots. Thanks for all the suggestions on how to correct this problem. I will be bedding all my rilfles from now on. On this one I just assumed the block was a pre-fit for the action and fit should be good. Thanks Greg

Hi Greg ,what load are you using? I been having pressure issues with both my .280AI's . What velocity are you getting?

 

[Firefighter]

My favorite powder so far is H1000...61.0grns,,there is room to move up,,,but any 160 class bullets are touching at 100yds,,3 shot group,,my barrel is a 1:9

 

[muleman69]

My favorite powder so far is H1000...61.0grns,,there is room to move up,,,but any 160 class bullets are touching at 100yds,,3 shot group,,my barrel is a 1:9

I'm trying the 131 hammers, do you think 1000 would be a good choice and how much can I start with ?

 

[Firefighter]

With the lighter bullet, I would try H4831SC

 

[muleman69]

With the lighter bullet, I would try H4831SC

That was my choice,thanks

 

[nmkid]

I'll soon be looking for a load for 140 gr Accubonds for the 280AI. However, the 131 gr Hammers have me looking at them.