can someone help with starting loads 378 weatherby with 350 grain bullets?

welcome to AR. you may also want to post in the big bore section as quite a few folks use such a fierce weapon to good effect.

Sierra I have some old Barnes data that shows a max load of 102 grs of H4831 with the 350 gr bullet. That would give you a starting load of about 92 grs. No mention of primer used but one assume it was the Fed 215. Hope that helps.

SW

Here is some data from the Load Data site. Proceed with caution

Format is:bullet weight, bullet, powder, weight, velocity, remarks, COAL, primer
Starting Load,
Max load


Ramshot Magnum
350 Barnes TSX FB Ramshot Magnum 106.0 2531
Remarks: minimum; COAL: 3.630"; primer: Fed 215

350 Barnes TSX FB Ramshot Magnum 114.0 2696
Remarks: maximum; COAL: 3.630"; primer: Fed 215



Alliant RL-22
350 Barnes TSX FB Alliant RL-22 100.0 2441
Remarks: minimum; COAL: 3.630"; primer: Fed 215

350 Barnes TSX FB Alliant RL-22 108.0 2687
Remarks: maximum; COAL: 3.630"; primer: Fed 215



Accurate AAC-3100
350 Barnes Banded Solid Accurate AAC-3100 95.5 2543
Remarks: minimum; COAL: 3.630"; primer: Fed 215

350 Barnes Banded Solid Accurate AAC-3100 103.5 2711
Remarks: maximum; COAL: 3.630"; primer: Fed 215



Ramshot Magnum
350 Barnes Banded Solid Ramshot Magnum 107.5 2628
Remarks: minimum; COAL: 3.630"; primer: Fed 215

350 Barnes Banded Solid Ramshot Magnum 115.5 2768
Remarks: maximum; COAL: 3.630"; primer: Fed 215

100 grains RL22