Originally Posted by jmason
Those are not going to run as hard as the burgers. They will require more pressure due to additional bearing surface. Be careful you should hit maximum pressure at a lower velocity with these.
You are 100% correct!
I have experienced that same situation with the 300 gr Accubonds in my 338 Edge using RL 25 & H-1000, I could barely get over 2800 fps before pressures spiked quickly with small increments of powder added .
The solution was to coat the Accubonds with WS2 (Tunsten Disulfide) and prepping the bore with the same stuff mixed with alcohol as a delivery agent , the results were very impressive ! I ran out of powder space before pressuring out and velocity approached 3000 fps, backing down to 2900 fps yielded 3 shot groups in .2 & .3's, I ended up shooting 40 rnds one evening with a .5 average. barrel is a 30" 9.5 Twist Obermeyer, Rem 700 action that has not been trued/ blueprinted etc.
Also in my recent testing and load development for my wildcat 375 PRO (375-338 Norma Imp 35 deg.)
Naked 300 gr Accubonds and A-Frame's pressured out at 2750 & 2800 fps but coated bullets easily reached 3000 fps with an accuracy node at 2950 fps & 3 shot groups in the .2 & .3's ( 27" 12 twist Brux bbl) also Rem 700, not accurized !
Have been using WS2 for over a decade, it was the only method I found that enabled me to reach and exceed Lazzeroni's 3550 fps 180 gr claims with the 7.82 Warbird in a Sako TRGS and factory 26" bbl , poor quality brass was the weak link in that scenario, the cartridge itself is fantastic
The bc's of those Whiskey Three bullets do sound magical but the guy is adamant they are accurate, citing that the methods used to get those #'s is similar to Bergers !
Some guys have been stung with Noslers ABLR bc claims and will sit back and watch, I could never find any of the 210 gr 30 cal bullets but will play with the Whiskey's and will pester them relentlessly to provide us with 300 gr, 330 gr and 350 gr .375 caliber long range bullets to fill that hole we are are experiencing in that 3/8 bore dept.