Ok so a few of you probably saw my post in the Equipment section, but I'm having a heck of a time with my scope/20MOA rail.
Semi Custom 300WSM 180 Accubonds @ 3100+FPS
Leupold VXIII Tactical 4.5-14x40 A/O
Leupold Custom Shop installed the Varmint hunter reticle
Leupold 20 MOA Rail
Leupold PRW medium rings
I zeroed my rifle @ 200 yds.
Checked at 607 yds with my 550 yd hold on top of target & was like 8 feet high! Woah! Adjusted scope way down. Shot 607 with my 550 yd hold on top of target & smacked it.
Ok, I thought, something is off. Ill shoot at 300yds. With my 300yd hold. So I did @ was almost 3 feet low!
So, re-zeroed my rifle at 300 with my 300yd hold. Moved out to 500 @ was way high again! Scratching my head, I tried my 400 yd hold on the 500 yd target & hit 5-1/2 inches low of dead center.
I chose the Varmint hunter reticle because it matches up so close to my 300WSM, & 300Wby shooting 180's at 3100 ish for the close stuff, & figured I'd dial anything farther.
It worked flawlessly on my 300WBY launching 180's at 3085 FPS with standard 2 PC Leupold medium bases, & Leupold rings.
How do I compensate for the 20 MOA rail when I'm running JBM to get close?
Do I even need to? Or is a 200yd zero a 200 us zero like I always assumed it was?
Here's a pic of Leupolds Catalog sub tensions in print, & my 180's in ink pen.
"Its not Rocket Surgery.....'
GOD,GUNS,&GUTTS MADE AMERICA, LETS KEEP ALL 3!winmag
"I have No idea why that cop made me ride in the back seat, when I Clearly called Shotgun!"