300 PRC Load Data
 

I wanted to create a thread where people who are working with this new cartridge can share info about what has been working and not working developing loads for this cartridge.

I recently built a rifle on a Rem 700 action with a 26" International Barrel's 1/8 twist 5R Barrel.

Velocity Data taken with Lab Radar Chronograph

Some Factory ammo data:

Hornady 225 gr. ELD-M
Velocity 2900 FPS Avg with ES around 20 FPS

Hornady 212 gr ELD-X
Velocity 2920 fps Avg. ES 32

My first Handloads were done using the following components
Brass ..... ....Hornday
Primer..........Win Magnum
Powder.........H4831sc 74 Gr.
Bullet ..........212 Hornady ELD-X
Coal............3.636"

Results
Avg Velocity 2918 fps ES 32 SD 16.3
Group sub MOA
No Pressure signs

This load was taken from the Hornady Manual. Posted in this thread as an image

Drop and Wind Data
 

Thought I would share some drop and wind data using the above velocities

212 ELDX @ 2915 G1 BC 663 G7 .334
Temp 10 C


300M
Drop...................(11 inches) (3.25 MOA) (0.95 Mil)
Cross Wind 5mph (1.55 inches) (0.45 MAO) (0.13Mil)
Energy 2979 ft/lbs

500M
Drop ...................(48.00 inches) (8.47 MOA) (2.46 Mil)
Cross Wind 5 MPH (4.56 inches) (0.8 MOA) (0.23 Mil)
Energy 2404 ft/lbs

700M
Drop............... (117.95 inches)(14.71 MOA) (4.28 Mil)
Cross Wind 5 MPH (9.48 inches) (1.18 MOA) (0.34 Mil)
Energy 1913 ft/lbs

1000M
Drop................. (200.58 inches) (26.34 MOA) (7.66 Mil)
Cross wind 5 MPH (21.29 Inches) (1.86 MOA) (0.54 Mil)
Energy 1322 ft/lbs

Load i'm working on now 300 PRC
Hornady brass, 212X, 215M, Ogive OAL 2.920, RL25 (79.5gr) 2950ft/s, ES 11

Looks promising and for sure can still go hotter....:)

Rl 25
 

Let me know if you have any major velocity changes as the weather gets colder.

New load now is RL-33 88gr and Berger 245EOL...2905 fps