338 EDGE - 250gr berger OTM load data

[wboregon]

I'm starting load development on some 250gr bergers since I scored a couple boxes on the cheap.

I've got 4831sc,7977,retumbo all available to load. I'm thinking of using the 7977 since I've got about 10lbs of it. What would be a good charge weight to start at?

 

[barefooter56]

I'm starting load development on some 250gr bergers since I scored a couple boxes on the cheap.

I've got 4831sc,7977,retumbo all available to load. I'm thinking of using the 7977 since I've got about 10lbs of it. What would be a good charge weight to start at?

This will get you started: http://www.bergerbullets.com/Reloading_Data/338Edge250gr.pdf . All load data is based on the COAL listed with the data. Load data is conservative and was generated using Quick Load. If you will be doing any bullet seating depth testing I suggest that you start at .015 OFF THE LANDS. Then WORK BACK INTO THE CARTRIDGE CASE IN .005 increments. Any bullet seating depth testing should be done at the lowest powder charge listed for the bullet/powder/cartridge combination you are testing. Information on the effects of bullet seating depth can be found here: http://www.bergerbullets.com/effect...coal-and-cartridge-base-to-ogive-cbto-part-1/ and
http://www.bergerbullets.com/effect...coal-and-cartridge-base-to-ogive-cbto-part-2/ . Once the bullet seating depth accuracy node is found. Work the powder charge back up slowly checking for pressure signs and accuracy until your highest velocity accuracy node is found. If you have any questions please feel free to contact us at any time. [email protected]

 

[wboregon]

This will get you started: https://www.longrangehunting.com/threads/338-edge-250gr-berger-otm-load-data.199472/ . All load data is based on the COAL listed with the data. Load data is conservative and was generated using Quick Load. If you will be doing any bullet seating depth testing I suggest that you start at .015 OFF THE LANDS. Then WORK BACK INTO THE CARTRIDGE CASE IN .005 increments. Any bullet seating depth testing should be done at the lowest powder charge listed for the bullet/powder/cartridge combination you are testing. Information on the effects of bullet seating depth can be found here: http://www.bergerbullets.com/effect...coal-and-cartridge-base-to-ogive-cbto-part-1/ and
http://www.bergerbullets.com/effect...coal-and-cartridge-base-to-ogive-cbto-part-2/ . Once the bullet seating depth accuracy node is found. Work the powder charge back up slowly checking for pressure signs and accuracy until your highest velocity accuracy node is found. If you have any questions please feel free to contact us at any time. [email protected]

I think you got your link mixed up there, you first one just links back to this thread

 

[barefooter56]

I think you got your link mixed up there, you first one just links back to this thread

my bad!
http://www.bergerbullets.com/Reloading_Data/338Edge250gr.pdf

 

[wboregon]

my bad!
http://www.bergerbullets.com/Reloading_Data/338Edge250gr.pdf

Oh yeah I've already seen the berger data. COAL seems to be pretty conservative though and they don't list 7977. Hopefully some one will come along with something.

Thanks though!

 

[barefooter56]

Oh yeah I've already seen the berger data. COAL seems to be pretty conservative though and they don't list 7977. Hopefully some one will come along with something.

Thanks though!

You are welcome! Send an email addressed to BOB to [email protected]. Include the bullet caliber and weight , cartridge and powder. Also include your name, daytime phone number and a good time to call. See if we can get you helped out with the IMR7977 DATA.

 

[bladescoach]

This will get you started: http://www.bergerbullets.com/Reloading_Data/338Edge250gr.pdf . All load data is based on the COAL listed with the data. Load data is conservative and was generated using Quick Load. If you will be doing any bullet seating depth testing I suggest that you start at .015 OFF THE LANDS. Then WORK BACK INTO THE CARTRIDGE CASE IN .005 increments. Any bullet seating depth testing should be done at the lowest powder charge listed for the bullet/powder/cartridge combination you are testing. Information on the effects of bullet seating depth can be found here: http://www.bergerbullets.com/effect...coal-and-cartridge-base-to-ogive-cbto-part-1/ and
http://www.bergerbullets.com/effect...coal-and-cartridge-base-to-ogive-cbto-part-2/ . Once the bullet seating depth accuracy node is found. Work the powder charge back up slowly checking for pressure signs and accuracy until your highest velocity accuracy node is found. If you have any questions please feel free to contact us at any time. [email protected]

I've read articles that suggest you achieve stability with velocity adjustments then tune you're barrel with seating depths.had anyone gone down this path?