S1 seems to me that your very knowledgeable on the 243 Ackley Imp. 40. I wanted to know if you are having trouble with RL-25 being temperature sensitive in colder weather. I was at the range this Saturday getting ready for the Western PA groundhog shoot here today.
I was interested if you ever tried N170 or H1000 and what kind of velocity you were getting with those powders and if they were temperature sensitive.
I was told by two shooters at the shoot that RL-25 works better when its hotter that 75°
From 60° to 66° there is a big difference in velocity. Any recommendations would be appreciated.
243 Ackley Imp. (.271) NK Chamber Reamer from Dave Manson which is throated .075 free bore for the 105 VLDs
Farley “S” action and Farley 30mm rings.
2 Krieger 8" twist 28.5" HV,& Lilja 8” twist 29” HV
Leupold 18x40 LR boosted & 1/16 MOA dot on 40x by Premier Reticles
Dave Bruno did the Chambering of the barrels.
I did the stock work and the Sikken Viper Race Yellow Paint and clear
Jewell 1.5oz BR trigger. Bat Machine Stainless Trigger guard
Shehane McMillan ST-1000 stock from Bill Shehane (D&B Supply)
Shehane TRACKER polished billet aluminum buttplate
Weight 16.5 lbs.
I started shooting at 10:00am the temperature was 60° my load was
Federal 210 match primers
JLK 105s on the lands.
I was shooting three shot groups through my Oehler P35.
Dropped powder down to 48gr