pwrdbycotn
Well-Known Member
- Joined
- Dec 15, 2010
- Messages
- 589
Today I took my 6.5 saum out to get ready for deer season. Since last season I have changed scopes (Tangent Theta 315P) and decided to switch to the 156gr EOL bullets.
I am loading 58 gr RL-26, 215M, ADG brass with no signs of pressure.
According to my labradar, my speeds were as follows: 2990, 3014, 3018, 3022, 3018, 3022, 3025, 3024, 3030, 3025, 3026, 3027, 3021, 3025, 3032, 3024, 3038, 3014, 3021, 3034, 3040, 3027, 3040, 3037, 3052
Rounds were left in the sun in the ammo box, which is why the speeds climbed some over the course of 2.5 hrs.
The gun wears a suppressor made by Hog Rush.
This load shoots very well accuracy-wise.
Here's the issue:
My shooting confirmed my drops as follows
200 yd- zero
400 yd- 5.25 moa
600 yd- 11.25
800 yd- 16.25
The shooter app calls for:
400 yd- 3.0
600 yd- 8.0
800 yd- 13.8
Why is there such a big difference? I've used the Shooter app for years and while there has always been a slight discrepancy between the real world and the app, it has always been minor and I've been able to make everything match up with minor velocity adjustments in the app.
Scope tracking shows to be spot on, and I am making certain there are no canting issues.
I plan to shoot again before season just to verify drops again.
Edit to add: 350 ft ASL, 31% humidity today, 68*
Gun is custom built by Pierce Engineering, 26" Brux, Pierce ti action, Manners, Jewell, Atlas bipod,
What gives?
I am loading 58 gr RL-26, 215M, ADG brass with no signs of pressure.
According to my labradar, my speeds were as follows: 2990, 3014, 3018, 3022, 3018, 3022, 3025, 3024, 3030, 3025, 3026, 3027, 3021, 3025, 3032, 3024, 3038, 3014, 3021, 3034, 3040, 3027, 3040, 3037, 3052
Rounds were left in the sun in the ammo box, which is why the speeds climbed some over the course of 2.5 hrs.
The gun wears a suppressor made by Hog Rush.
This load shoots very well accuracy-wise.
Here's the issue:
My shooting confirmed my drops as follows
200 yd- zero
400 yd- 5.25 moa
600 yd- 11.25
800 yd- 16.25
The shooter app calls for:
400 yd- 3.0
600 yd- 8.0
800 yd- 13.8
Why is there such a big difference? I've used the Shooter app for years and while there has always been a slight discrepancy between the real world and the app, it has always been minor and I've been able to make everything match up with minor velocity adjustments in the app.
Scope tracking shows to be spot on, and I am making certain there are no canting issues.
I plan to shoot again before season just to verify drops again.
Edit to add: 350 ft ASL, 31% humidity today, 68*
Gun is custom built by Pierce Engineering, 26" Brux, Pierce ti action, Manners, Jewell, Atlas bipod,
What gives?
Last edited: