Is anybody reloading this bullet for their 375? I am looking for load data to achieve factory ballistics,Thanks.

I do load some 300 Partitions in my 375 H&H with Reloader 15. Makes for a good stiff accurate load in my rifle.
What factory load are you wanting to duplicate?

My standard 300 grain load for 375 H&H, which does include Nosler Partitions is 66.5 grains of IMR 4064 in a WW Super case with Fed 215 primers and it yields 2450 fps out of my 25 inch pre 64 Win 70.

A much more versatile and flat shooting choice would be the 260 grain Nosler Partition with 70 grains of IMR 4064 which gives me 2710 fps in the same gun.

Thanks for the responses so far,I am trying to duplicate the Federal premium ammo loaded with this bullet,I have a double rifle regulated with this make of ammo.

Bill, don't know what the Federal load specifics are but something around 2550 fps out of 24" barrel should get you close. I would try 66-68 grains of R-15, 66-68 grains of Varget, 73-75 grains of IMR 4350. All of these powders have about the same burn rate but as you well know when regulating a double one will work well and the others will be mediocre. Let us know what you come up with in the end.

Thanks Dirk,I will post on here when I get it all working,won't be for a few weeks,our first snow/ice storm just hit here today,we were having great weather until yesterday!

I can't help you with load data but the 300 grain partition is outstanding. Some make the mistake of thinking the unbonded nose core separating from the rear shank of the bullet in an animal is bullet failure. Not so! It's just one bullet becoming two bullets with more internal tissue damage than if they had stayed together. On my eland the bullet hit something on the way to the animal and hit too far back causing a 1/2" hole of an expanded bullet you could stick your finger into. The rear shank turned left passing through alot of gut an impacting the left hip(offside). The lead nose core turned right and blew a nice hole through the left(offside) lung and bringing the animal down in 60 yards. That separating nose core was a life saver.

I have used them with ?? grs. of RL-15 that gave me a mild load at 2550 FPS, I just don't recall the number of grs. off hand, but I suspect it was about 67 to 68 grs. You can get upwards to 2650 FPS with max loads in the .375, but you will get better bullet performance on DG at 2500 to 2550 FPS.

What Snelltrom and Ray said. I use the same load as my main load in a Winchester Safari Express. Its my go to load and never let me down. Eland, Kudu, impalas, baboons, blue wildebeest, zebras, warthogs, you name it. Seems like my load was 72 grains of RL-15 for 2560 over a chronograph.

75.5 grains IMR 4350

Another option that has worked for me is Win 760, I had much trouble with Varget, RE15 and H4350 getting trapped between the bullet heal and shoulder causing bulges in the brass. I switched to 760 and the problem was rectified, but, a big plus was also part of the package, groups had shrunk with 5 shots touching.
Even after re-chambering to 375 Weatherby, 760 is the first powder I test with new bullets, second is H4350.

Cheers.

Bill: I've never shot Partitions out of my 375, but I've tried just about everything else. 76r of H-414 and 215 primers produced right at 2550 for me and with the TSX, 72r of RL-15 and F 210 Primers got me there as well. jorge

Thanks gentlemen,I appreciate all the info.

When I had my 375 H&H, 76 grains of 4350 with the 300 grain Partition was my go to load.

As you can see the old .375 isn't all that picky about what you feed it...I have used RL-15, IMR-4064, WW760, both H and IMR- 4350, all are about equal in velocity and accuracy...That's one of the niceties about the old girl. I think back over the years and IMR-4064 was usually the most accurate powder in most of my 375's and got the right velocity.

Its been said the .375 H&H shoot all bullet weights and loads to the same POI...Not so and and like most any caliber, only a few will do that, so you had better test every load you intend to shoot and see where it hits.