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Discussion Starter #1
Looking for load data for 375 Win with 200 JFP.
I used to load Re-7 but loads I now find are anemic. Also, limited powder selection.
I see articles listing MV of any where from 2100 fps to 2400 fps...
I suspect that no LVR powder loads exist... too bad.

I know that posts have covered this before but I cannot find them with a topic search. Maybe too old...
 

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I'm in the same boat. Lyman 48, 49 and 50 don't show data for the 200gr. Sierra bullets. In what I have been able to find on it, Accurate 1680, Rel-7, H322, H4198 and IMR 4198 seem to be the go to powders for the .375 Win. with maybe a slight edge to the Accurate 1680. I would like to pick up some Barnes 255gr originals, but they are expensive. Barnes lists the Rel-7 as their top pick for that bullet.
 

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Discussion Starter #5
Any specs so far and velocity?
 
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This is from the 2016 Hodgdon manual

IMG_20191123_164530.jpg
 

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My rifle shoots good groups with 35gr H4198 and the 200gr Sierra. I haven't got around to dialing in a "better" load yet.
 
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Looking for load data for 375 Win with 200 JFP.
I used to load Re-7 but loads I now find are anemic. Also, limited powder selection.
I see articles listing MV of any where from 2100 fps to 2400 fps...
I suspect that no LVR powder loads exist... too bad.

I know that posts have covered this before but I cannot find them with a topic search. Maybe too old...

Bill,

The attached link is to a sticky post I started a few years ago in the Reloading Forum. You will find many load data reference links in the post. Hope you find what you need.

https://www.marlinowners.com/forum/reloading/281290-line-free-load-data-references.html
 

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The only bullet I can find is the Sierra 200 gr., so I compare that data with the powder manufacturer's. What I'm currently using is the 200 gr. Sierra bullet and RL-7. Unfortunately this is a heavily compressed load.
 

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I loaded 20 using the 200gr Sie PH and H322 just to have something to shoot in my newly acquired rifle. I have 3lbs. of Reloader 7 so I'm going to give that a try also. Even though my H322 load was on the lower end of Hodgdon's recommended loads, it was still compressed somewhat. With the holidays coming up and deer season starting next week, I don't think i'll have a lot of time for the range, but this is an ongoing project and I look forward to working on it. My .35 Rem was much easier. I bought two boxes of Hornady 200gr. FTX ammunition and it shot so well I didn't even bother trying to work up a handload for it.
 

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Blue,
Just give me directions and I will drive up and take that off of your hands so you can avoid all of those issues....

I am 10 miles north of York, so only a two hour drive….

I am a "Giver"...
 

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RL7 anemic??? I have to kindly disagree. they will shoot through any deer on the planet, or at least in SC at 150yds I did a lot of testing and a sierra 200gr. with a case full of RL7 was the very best load. accuracy wise and with mucho poder,,,,,,,,,,,,,,,,
 

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Discussion Starter #14
RL7 anemic??? I have to kindly disagree. they will shoot through any deer on the planet, or at least in SC at 150yds I did a lot of testing and a sierra 200gr. with a case full of RL7 was the very best load. accuracy wise and with mucho poder,,,,,,,,,,,,,,,,
Go back and read my first post.. The loads I was finding were anemic. That is why I was looking for others...
 

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I did a lot of testing with bullets and powders six years ago after finally finding a Marlin 375. I chronagraphed everything I tried along with the Winchester 200 grain and their discontinued 250 grain ammo. Real world velocity from my rifle with 20" barrel was quite a bit lower than any published load data along with the velocity Winchester claimed for their factory ammo.

To make a long story short, max load of RL-7 gave highest velocity but accuracy was dismal. H322 shot well but velocity didn't come close to any published data. I ended up using the discontinued Hornady 220 grain with H4198 and data from the Hornady manual which is the highest I've seen listed. This load shot well but velocity was still over 100 fps slower than listed data but the highest of several powders tried.

I've since moved on with the Les Vollmer bullet with H4198 but have not chronographed this load or any other powders. I also have the Ruger #3, the Savage 99, and Win 94 in 375 Win. If I ever get time in the future, I would like to chronograph those rifles with the Les vollmer bullet and several powders.
 

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I never ever worry about velocity. I will try top velocity powders first but only because they usually give the best accuracy, that is what I am always after, the rest will take care of itself. but I have been handloading for over 50 years now and have loaded for most things I will ever use and pretty much know which powder to use in a given cartridge,,,,,,,,,
 

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I never ever worry about velocity. I will try top velocity powders first but only because they usually give the best accuracy, that is what I am always after, the rest will take care of itself. but I have been handloading for over 50 years now and have loaded for most things I will ever use and pretty much know which powder to use in a given cartridge,,,,,,,,,
Velocity is not everything, but it's nice for a cartridge to actually come close to it's intended potential. I had two 30-06's with 22" barrels that couldn't achieve the velocity of a 308 Win with the same barrel length. I thought it pointless to use such rifles that recoiled more that used more powder to have lesser results than a short action cartridge. Also had a 257 Roberts that no matter what I did could not brake 2600 fps with a 100 grain bullet. That velocity is 400 fps slower than what the Nosler manual shows. I am by no means a hot rodder when it comes to handloading. It's just nice to come within 100 fps of the original velocity of when the cartridge was released by the manufacturer. On the other end of the spectrum, I have a custom built 250 Savage that I had to load below the starting loads of any manual to get it to down to the speed of any factory ammo ever offered. It was shooting faster than any of the four 257 Roberts I had on hand at the time.
 

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Discussion Starter #19
There is not a lot of sense in investing in a 375 Winchester to only get a 200 grain bullet at 2000 fps. Thus my focus on loads with better speeds.
I can do that 200 gr./2000 fps with my 1894 44 mag. Although the 375 Win will carry better past 100 yards even at 2000 fps.
Logically, I could just look for a 35 Remington with factory ammo for 200/2000, but I prefer straight walls.
 
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There is not a lot of sense in investing in a 375 Winchester to only get a 200 grain bullet at 2000 fps. Thus my focus on loads with better speeds.
I can do that 200 gr./2000 fps with my 1894 44 mag. Although the 375 Win will carry better past 100 yards even at 2000 fps.
Logically, I could just look for a 35 Remington with factory ammo for 200/2000, but I prefer straight walls.
Why not try Hodgdon H4198? It's not the same as IMR4198, obviously. H4198 works well in my 45-70 & my .375 Win.
 
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