375 Win. XTR

[versa-06]

Wow! I finally received my 375 brass from Starline today, & tried a few loads watching for pressure. AA-2015 Per factory email quotes 32.0 grains. The throat on this rifle is deep, & will take std. 38-55 brass no problem. Using the LEE 379-250 boolit PC'd & sized .378 I started a trial of 3 shot groups @ 31 grains of WC-846 (seems to be identical to AA-2015 burn rate with several different calibers I've tried) 31 gr gave me a 2 1/2 spread No pressure problems. Went up to 31.5 grs & wow four rounds @ 2-shot intervals trying to keep a cool bore. I got a .942 group with 3 touching tight & 1 slightly outside left. I know it's only 4-shots but I'm using a bevel based bullet @ about 1850 fps.Powder coated no check. Ran out of prepped brass & daylight, but called time out with hopeful thoughts for tomorrow. Sure wish Jess would get that 5-groove 38-55 completed. Hunt'n seasons comm'in.

[versa-06]

P.S. 50 yds

[pworley1]

You are off to a good start.

[lar45]

Sounds great

[johnzx6r]

Nice! My .375 Win. brass from Starline is supposed to be getting here tomorrow. Looking forward to experimenting with some loads!

[marshall623]

I've been working with my Dad's 375 XTR , I slugged the throat and I had .377 and sizing the the same boolit .379 . The other week I had about a 5" group @ 100 yd using 29gr of RL7 . I shot 5 more at 30gr it went south quick . I've got some more loaded starting @ 27.5 and up in 1/2 gr increments. Hope to get to the range soon . Guys good luck with those 375s

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[marshall623]

The one I got from Dad is first year production / top eject and it's wearing a Williams receiver sight .

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[Midohhntr]

Good boolit, I use the same one in my Jes rebored Marlin and the accuracy is very good.

[versa-06]

I've found that AA-2015 & this batch of WC-846 is great for full house loads, usually find a their sweet spot at full charge or just under. They are not real versatile to reduced charges like some other powders.

[versa-06]

johnzx6r; Welcome Aboard! Just noticed your post count, Hope you received your 375 brass & have begun testing some loads. Plenty of help & 1st hand experience on this forum. Don't be shy, Ask away at anything you need, we all will help with whatever you may ask. No such thing as a dumb question.

[MT Gianni]

I was told to compare WC846 to BL C-2 but that was 20 years ago.

[versa-06]

When I purchased this WC-846 powder I was told to use BLC-2 Starting charge minus 10%. then work up. I use it in 223,243,30-30,30-06,308,&358, with almost exact charge weights as AA-2015. Bought the last 2015 that Wideners had when they quit selling powder.

[Ramjet-SS]

Absolutely love this caliber and gun it should be fun fine tuning it for hunting and shooting.

[Rapier]

I have a few thumpers, the 375 model 94 XTR is the latest trade. It is the first model 94 I have ever owned, normally avoid them like the plague, buy a Marlin, side eject instead. But this big big bore spoke to me. So can no longer say, I never.
I have the dies, brass, 270 grain J bullets and the 250 grain plain base, flat point bullet for PC.

[Randy Bohannon]

I bought mine to treat as a 38-55 WCF +P if the need arises, these are some of Winchesters best rifles of the era. I like 20 grs. of IMR 4759, 250 gr. G/C bullet Ben’s Red lube . I bought 7 lbs of 4759 before it discontinued ,it’s enough to feed the rifle for a long time.

[beltfed]

For my hunting load in my Marlin 336 CB 38-55/ Redfield 1 3/4-5X Widefield:
38-55 cases , 28 gr Re7/ Lyman 375449, 265 gr GC or the lyman 379248,255PB/0.060LDPE wad.
Often Clover leafs at 100yds.
Load also shoots well in my 375Win Contender Carbine
beltfed/arnie