Vertical shot string

[Ro6.5]

Hi

just wondering if someone can give me some advice. I was have worked up a load for my 22.250AI and settled on 41g of n135 my final group was a 4shot .4 group. But my query is the group was in a vertical line of 4 bullets all touching. And I seem to remember there is some sort of remedy to tighten the group down. If anyone can help that would be great! Thanks

Ro6.5

[tisme]

Sound to me like you have not found the top or bottom of a node

This is a good article in case its doing it with other ammo http://www.6mmbr.com/verticaltips.html

[gbal]

+1 on tisme- probably a node /load issue,but the Speedy Gonzales article he refers to,has 34 other possibles too-it won't be all of them!! Good luck.

 

gbal

[Andrew]

If it's not you, try changing primers.~Andrew

[jcampbellsmith]

Hi

just wondering if someone can give me some advice. I was have worked up a load for my 22.250AI and settled on 41g of n135 my final group was a 4shot .4 group. But my query is the group was in a vertical line of 4 bullets all touching. And I seem to remember there is some sort of remedy to tighten the group down. If anyone can help that would be great! Thanks

Ro6.5

 

41g is a lot of powder. Have you tried 40.8 gr and 41.2 gr? Once I'm getting close on a powder weight, I generally repeat the load test before looking at seating adjustments.

 

Regards JCS