375 Winchester QL
- Thread starter Slimfinn
- Start date
Haven't loaded the 200 gr Sierra's as yet...and have used IMR4198 with the 220 gr Hdy to date (32.2 gr for 2000 fps - did not chrony so cannot prove what the Hornady manual claimed for velocity in the 20" barrel).
Load Data states that IMR4198 and Re-7 give the highest velocities, while H-322 gave the tightest groups in the Winchester.
Shooter's Reference provides data for both IMR4198 and H-322 for the 200 gr bullet.
Load Data states that IMR4198 and Re-7 give the highest velocities, while H-322 gave the tightest groups in the Winchester.
Shooter's Reference provides data for both IMR4198 and H-322 for the 200 gr bullet.
Joec7651
Handloader
- Apr 7, 2019
- 943
- 1,201
The 375 runs on the same powders that make the 45-70 purr. Either 4198, RL7, Vt130. Leverevolution is probably a bit slow for a straight walled cartridge.
Here's a link with some more info for reloading the 375 Win (and 356 Win for those also interested):
https://www.thefreelibrary.com/Leve...+ill-fated+Big+Bores,+the+.375...-a0103381593
Going to be trying some of these loads myself in my Marlin and my Winchester.
Because I know how well the 220 gr Hdy shoots in my Marlin, I will probably stick to this bullet in the Marlin, and develop loads with the Sierra in the Winchester.
Probably be May when I get around to this, as focussing on my trip to New Zealand at the end of April/beginning of May at the moment. Although Susan is looking forward to hunting bear this spring when we get back!
If I don't get to it then...may just hunt bears with the 338 Marlin Express or my new to me 444.
https://www.thefreelibrary.com/Leve...+ill-fated+Big+Bores,+the+.375...-a0103381593
Going to be trying some of these loads myself in my Marlin and my Winchester.
Because I know how well the 220 gr Hdy shoots in my Marlin, I will probably stick to this bullet in the Marlin, and develop loads with the Sierra in the Winchester.
Probably be May when I get around to this, as focussing on my trip to New Zealand at the end of April/beginning of May at the moment. Although Susan is looking forward to hunting bear this spring when we get back!
If I don't get to it then...may just hunt bears with the 338 Marlin Express or my new to me 444.
RL338
Handloader
- Mar 23, 2017
- 3,369
- 5,490
Even Hodgdon doesn’t list much.
- Thread starter
- #6
yeah I saw that thats when I asked here, you can also get the Hornady info from there website under obsolete data
DrMike
Ballistician
- Nov 8, 2006
- 37,402
- 6,213
I used RL7 and IMR4198 when I was working with my M94 375 Win. H322 would definitely work,
