OCW test

[JakeGraves]

I wrote charge weight up and to left prior to shooting groups. Am I correct in assuming 61.0 is in middle of a node? Hard to look away from the tiny group with errant flier loaded with 60.4.

 

[JakeGraves]

SD not the greatest

 

[josebd]

60.7-61.0

 

[jepp2]

Just a personal preference, but I increment my charges by 1%. Yours are so close they might not show much velocity difference.

 

[Zero333]

Don't worry about SD.

My last OCW I did with 240smk and RL-33 in a 300winmag, the worst group had a ES of 2 and SD of 1 !!!

I like the group at far right middle row (61 gr ?)

 

[Lapua40X]

60.7

 

[jpmimproved]

Zero333 is correct, velocity deviation is not of particular concern during OCW testing. That comes later on in the process.

 

[JakeGraves]

Thanks all for the advice. Ill start tweaking the seating depth now off of the 60.7-61 charge. Caliber is the 6.5 SAUM in case you were wondering.