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Posted: 4/17/2017 11:20:19 AM EDT
Iowa just approved straight walled rifle cartridges for deer hunting.  One of the rounds on the approved list is the 375 Winchester.  I may have an opportunity to pick up a 375 Marlin.

Anyone run this round?  I know ammo is hard to find and expensive.  I do reload if that becomes necessary.  I have a 357 magnum lever gun that would be legal, but I think that might be a bit weak.  I've looked at 45.70's in various flavors as well.
Link Posted: 4/17/2017 3:04:41 PM EDT
[#1]
If you can get a .375 Marlin, do it.
The .375 and .38/55 are dimensionally near-identical, with the only (slight) difference being case length. The .375 is loaded hotter, though.  
The famous and ubiquitous .30-30 Win is just a necked-down .38-55, so very usable brass can be easily created from .30-30 Win.
Not surprisingly, the .375 is basically a heavyweight .30-30 Thumper, with ballistics very similar to the .35 Rem: no laser-beam trajectory, but it hits hard (c. 220gr at 2100fps). Much gentler on the shoulder than some of the .45-70 loads, and still perfectly adequate to the job.
Link Posted: 4/17/2017 4:16:30 PM EDT
[#2]
That was my thinking.  Softer shooting than a 45 70, perhaps a bit flatter.  An 150 yard shot on a deer in Iowa is stretching it.  A 100 yards is even kind of unusual.
Link Posted: 4/17/2017 4:38:20 PM EDT
[#3]
375 Marlins (336ER I think was the designation) do not grow on trees.  If you have the opportunity to pick one up at a reasonable price, do it.

It would make an absolutely outstanding deer rifle.
Link Posted: 4/19/2017 10:57:14 PM EDT
[#4]
Discussion ForumsJump to Quoted PostQuote History
Quoted:
375 Marlins (336ER I think was the designation) do not grow on trees.  If you have the opportunity to pick one up at a reasonable price, do it.

It would make an absolutely outstanding deer rifle.
View Quote
336ER was in .356 Winchester.  

I'd definitely pick up a .375 Marlin if the price was reasonable.  They're pretty rare.
Link Posted: 4/22/2017 10:34:34 AM EDT
[#5]
I have had one of the Marlin's in question for 30+ years. I've always handloaded a 220 gr. Hornady to around 2200 fps. In the last 40 years I've killed lots of big game using many, many different calibers, but the .375 Winchester left a deep impression. I've shot a few deer and one hog and it absolutely hits like the Hammer of Thor. Bang/flop every time.
Link Posted: 6/23/2017 7:37:16 PM EDT
[#6]
I looked at the 375 when Ohio OK the rifles a couple of years back.  I found them at gun shows, but never wanted to pay the $850+ for them.  I went with the 444 marlin to use on OH deer. 
Link Posted: 6/23/2017 7:41:22 PM EDT
[#7]
Link Posted: 6/24/2017 8:23:24 PM EDT
[#8]
I almost bought a 375 Marlin a couple of years ago. There was a guy that always set up at the Mason City gunshow that had a really nice one for sale(I think it was in the mid $700 range)but I decided not to get it because ammo is harder to find than the .450 Marlin I used to own.
Link Posted: 6/28/2017 6:55:36 PM EDT
[#9]
Good round, but brass and bullets are getting harder to find.  The 375 case is significantly stronger than a 30-30 or 38-55 case, and is designed for higher pressure. Winchester occasionaly, or used to, make limited runs of 375 brass.  If memory holds, recall reading Hdy discontinued it's 220 grain fp, and haven't seen any Sierra 200 grainers for awhile.  Barnes original 255 grainer appears to have limited availability.

Winchester also made a more common 375 big bore.  The round is not known for it's accuracy, perhaps due to the long chamber throat.  AA 1680 can be used to get the Sierra 200 fp up close to 2400 fps, a significant increase from the 30-30. Recommend considering a Lee sizing die if you start reloading.
Link Posted: 6/29/2017 12:24:03 PM EDT
[#10]
Discussion ForumsJump to Quoted PostQuote History
Quoted:
375 Marlins (336ER I think was the designation) do not grow on trees.  If you have the opportunity to pick one up at a reasonable price, do it.

It would make an absolutely outstanding deer rifle.
View Quote
You can also have JES rebore a .30-30 to .38-55 for you; I believe it's around $250 for the service. There are quite a few hardcore Marlin fans who have run-of-the-mill 336s rebored so they can play with other chamberings without breaking the bank.

http://www.35caliber.com/8.html
Link Posted: 7/6/2017 4:57:53 PM EDT
[#11]
Update-Learned Jamison started making 375 win brass.  The brass and Barnes original 255 lfn jacketed bullets are currently at Graph and sons.
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