Load development at distance

[4xforfun]

With some rifles having a 50 fps or more velocity spread, they shoot smaller groups in MOA at long and short range than mid range. Bullets leave on the muzzle axis upswing so slower ones leave at higher angles than faster ones.

Like I have said before...the ES on my LG that I used to win the Nationals in 2011 had a HORRABLE ES...like 40 or 50. Now..it was like 10,000 degrees that year at nats, and maybe things changed and it straightened it self out, but when I left North Dakota it was shooting itty bitty groups at 1000 with a bad ES....at least in 70 - 85 degree weather.

Tod

 

[Dusty Stevens]

because they are wet from dew

Ray

actually no. new tails every morning before the first relay.

 

[KenOath]

Not to disagree with anything said here, I have been shooting a new 284 Bartlein barrell, 180vlds in F Class. I tuned at 200m initially and then finished final load at 400m,loads look good on paper and this rifle has shot extremely well for me in F Class from 300m to 900m, beating some of my States best along the way. I recently purchase a labradar and ran 15 shots past it and was very surprised to see an ES of 50fps, shot a 700m comp that day for a 60.5x and 58.3x only dropping 2 points for the day..
maybe the labradar wasn’t set up correctly I’m not sure but 50es seemed very high for a load that holds tight vertical From 300m to 900m all year round ?? Any ideas??

I also just recently won our 500m Fly State Chanpionships LG and HG with a BRA that had an ES of 25 according to the Labradar... shoots small groups, I’d be very happy if I got ES down and it shot smaller.