375 Winchester reloading progress and questions

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HirschCreek

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First of all many thanks to the fellow nutters that have helped me attain and aquire everything from dies to bullets for this "dead" caliber, I am very close to actually getting to fire this beauty.
I have acquired the following to make a 100 rounds of .375 win:
- 100 Winchester brass cases
- 100 Sierra FP 200 gr. pro hunter bullets
- 100 CCI large rifle primers
- Hodgdon H322 propellant
- Lee dies
And of course my Winchester XTR Big Bore!!!!

I do have to ask once again for some input from ya'll on a few things to make sure I'm 'getting it right the first time'. Firstly I don't have a press yet..any suggestions there? Since I bought Lee Dies should I be buying a Lee press?? I don't have any loading data except what's in the manual of the Lee dies, which suggested H322 powder by the way, which loading data book is best?? Is H322 a good powder for this cal or do you have other suggestions?? I've looked at other possibilities like leverlution and lil gun. Lastly my Die set has 5 components: sizing die, bullets seating die, expanding die, shell holder and powder dipper. Do I need any other dies? Specifically do I need a crimping die for after I seat the bullet? I know I need a caliper and probably a powder scale.
So far so good I think. What would you guys do different?
Any input would be appreciated a ton!
 
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You can buy whichever press you like, since they all sport the same thread size to accept dies [7/8-14]

Your seating die should have a crimping feature when adjusted properly.

H322 should be a great powder in the 375. I do not own a 375 Winchester, but I do own it's first cousin, the 38-55.
I am using 32.0 grains of H322 behind the 255 grain FNSP, with very good results.

Others that work well are RL7, IMR 4198, Norma 201, Benchmark.

Your 375 is an uptake on the 38-55, and is an excellent short range [up to 200M] deer getter.

Regards, Dave.
 
Lyman reloading manual has plenty of load data. There is also some on hornady's website.

If you need more brass contact me. I think I have some in hiding.
 
RE#7 is what my buddy uses in his as recommended by Hornady.......as well it works well with jacketed ammo in the 38-55.......Harold
 
AA1680 was an incredible performer in my dearly departed M375 Marlin. Was able to safely get 2300+ fps and great accuracy (1.1 moa) with 1680 and Hornady 220gr FP bullet.
 
Good morning,
I just read your thread on the .375 Win.
I have just received a .375 Win. rifle.
I plan on using powder coated 225 gr. cast bullets, I could use some brass.
I was going to use 30-30 brass, but ready made would be nice.
What have you got, and how much are you asking.
Best regards!
Old Ford ( Fred )
 
Hi for small quantity reloading a single stage press is all you need and a better place to learn start reloading . I have used a Rcbs rock chucked for years . It and other lee or Lyman will last your lifetime.
Try seating the bullets and then back off the seating stem to crimp with the same die as a second step. This will give a better control on crimping and not cause a bulge in the brass that nay make it hard to chamber a round .
Pen flashlight to look into the cases after powdering to check for powder and amount of powder in the case.
Loading block to stand the cases in.
Bullet puller hammer type to cheack or pull ones in dobt.
Scale check and recheck each step then check again.
 
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