Barrel speeds up, pressure rises?

[C.E.Smith043]

Once you start using a chronograph you’ll wonder how you got along without one..

I completely agree, yet i always get hand fulls of shooters whom claim otherwise

 

[carlsbad]

what is the neck clearance on your chamber? I had a similar/worse episode and the same solutions were suggested here. I finally concluded that I didn't have enough neck clearance so I was getting some neck tension impact from the chamber. Normal clearance is .005 to .008 and I was running tighter, about .002 (machinists and engineers often mistakenly think tighter clearances are always better).

 

[Liven The Dream]

Same Lot of Varget ?? All Varget is equal ...

 

[mike a]

Update. So you guys were right. Spent the morning scrubbing, shot this evening. 30.0 Varget, .010 jump. No pressure. 5 shots, 100 yards prone bipod. 6BR is like cheating.