375 Winchester Pet Loads?

[Peter M. Eick]

I am going to buy a 375 winchester this week (if it is still there) and I am looking for good loads. I see the RL7 and either Seirra or Hornady bullets seem to get the nod. I am just going to plink at the range and maybe go after a deer this fall, but basically just another toy to piddle with.

Any suggestions would be appreciated.

Thanks

 

[zeke]

In a Marlin tried, Accurate 1680 equals the accuracy of RL-7, with signifacant increase of velocity using Listed loads in Accurates manual . Tried with the Sierra and Hornady bullets, have got 2 boxes of the Barnes heavyweights, but ain't tried em yet. It seems Win just released another batch of brass, received 500 of em from Graph and Sons yesterday.

When get more time, will list the specific loads tried.

Did ya get a Marlin or Winchester? Finally got a Win Big Bore, but ain't tried it yet.

 

[AH-1]

my all time fav load for my winchester BB 94 375,***not usra***

220 gr hornady
36.0 gr's RL 7
win brass
win primer

tried alot of different loads, powders and the sierra 200's the above load is the accuracy champ.every deer hit dropped and no runners .
pete

 

[Peter M. Eick]

Its going to be a very early Big Bore winchester. I was going to get it today, but a friend needed a ride home. Tomorrow, I promise! (if they sold it today I will be really irritated.....)

 

[AH-1]

pete,hope you get it you will love it.it a shame they quit making the factory 250 gr load.it was a thumper
AH-1

 

[zeke]

From Marlin 20 incher, using Win 375 brass, Fed 210 primer and Hard LFC. Following are the loads that got good combination of accuracy and velocity. The testing was real subjective, using factory sights at 50 yds. The Win brass was once fired factory loads, then full length rezed and trimmed. Will try partially resized next, as the rcbs die used seems to size much smaller than the factory brass, causing considerable case stretch. 375 brass is the hardest brass to trim that i have tried yet, and had to resort to power trimmer to minimise the effort. Next will try backing off the die.

Sierra 200 grain
40.0 grains 1680 = 2365 fps, very accurate
37.8 grains AL-7 = 2160 fps, very accurate

Hornady 220 grain
37.0 grains 1680 = 2200 fps, very accurate
35.5 grains RL-7 = 2030 fps, very accurate

The higher 375 loads have a desent amount of whampum, at both ends. Mine now has a simms recoil pad on it.

 

[Peter M. Eick]

Thanks again. Still did not get it. Long long day at the office and I just could not get away. Tomorrow I leave early so I can pick it up. Man what a pain.

I have decided that if it is still there, then it was "meant" for me to have it.

I just wish it was not against the company policies to bring it on-site. Otherwise I would get it at lunch time.

 

[Peter M. Eick]

Well I looked at the Big Bore yesterday. They wanted $649 for it. Very nice shape, only shot a bit and minimal marks on the loading gate. The problem was the base of the receiver. Somehow the bottom of the receiver must have rubbed/bounced on something hard because it is all "chattered" up. Not gouged, but definately chewed. Someone even tried to cover it up with a bit of cold blue. SIGH!

So, I pointed it out to the sales guy, asked what they would take for cash and they said $600. I gave him my best wide eyed surprised look and said I was thinking more like $500 given the chewed up receiver. Well, they did not want to budge, so I put it back.

My other complaint was the "guts" were awful loose compared to my pre-64.


Oh well, I guess the quest continues. Thanks for the advice on the loads. I will find a nice one some day.

 

[zeke]

The Win Big Bore i just picked up at Scheels this summer for $300. Brand new in box, but had stock imperfections (wavy patterns are nice looking, but unstable over time). Was looking for a 30-30, thought the bore looked kinda large. The sales clerk was not familiar with 375 Win caliber. Even tried to dicker him down, but his manager was firm. Probably one of the better deals got in awhile, till the NIB 646 got for $400 last week.

The Marlin 375 being used, was also picked up on the cheap (lots of surface wear, couple small pits, scope base marks and loose forearm. $250 with dies and 4 boxes Win factory rounds. Shoots accurate now, but took some fixing.

$600 would seem like a high price for NIB Marlin, last time i looked there were a couple of Big Bores at GunsAmerica.

Just looked, there are 2 XTR 375 Big Bores at GunsAmerica. One for $600, and one for $390. I think the xtr's are the angle ejects.

 

[Peter M. Eick]

Yeah, I will have to check those out. I really want to handle it before I buy one though.

 

[adobewalls]

I had an XTR Big Bore a long time ago, and it was the model that had checkering on the palm of the stock and on the forearm. At least at that time the ejection was still straight up.

 

[Mr.B1852]

I just started to play around with the 375 Winchester * inherited from my brother and found that I'm going to start with Accurate 1680 and the Sierra 200 grain bullet, part number 2900. the load data I got from Western Powders says that I can run as much as 40gr of 1680, ( not that I'm going to ) with a CUP Pressure of something like 41,500. and with really good velocity. 2512 F/S. I really like having a cushion instead of running right at Maximum pressure , besides my back can't take a ton of recoil any more. if I don't get the results I'm looking for than I'm going to try Reloader 7​