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Joined: Nov 2009
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Campfire Greenhorn
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OP
Campfire Greenhorn
Joined: Nov 2009
Posts: 85 |
At a recent gun show, I saw a .30-378 for sale. The guy told me that the gun was an original wildcat round. He said the gun is about 30 years old. He said he has shot deer at over 500 yards with it. He used it for long range target shooting, but it didn't have the huge target stock. Although it must've weighed as much as my leg. Does this round have any hunting use? I was also told that this round is now the Rem. 300 Ultra Mag. Any truth to this? I don't have any interest in buying the gun, just interest in knowing more.
Never be upset by getting old, many never get the privilege.
Knock knock. Who's there? 9/11. 9/11 who? You said you'd never forget.
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Joined: Dec 2006
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Campfire Ranger
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Campfire Ranger
Joined: Dec 2006
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To me the 30/378 is the ultimate .30
Its a bit more than the ultramag....not much but just a bit.
Yeah its a great long range hunting rifle.
At 500 yds its just getting started.
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Joined: Dec 2005
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Campfire Regular
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Campfire Regular
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Not to start a piss contest, but IMO, whatever the 30-378 does, the .338-378 does better, farther, and faster.
R.
You can run, but you'll just die tired.
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Joined: Dec 2006
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Campfire Ranger
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Campfire Ranger
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Joined: Jan 2010
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Campfire Member
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Campfire Member
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30-378 is the big 30cal diff a long range gun and fare more power then a ultra mag
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Joined: Aug 2008
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Campfire Outfitter
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Campfire Outfitter
Joined: Aug 2008
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At a recent gun show, I saw a .30-378 for sale. The guy told me that the gun was an original wildcat round. He said the gun is about 30 years old. He said he has shot deer at over 500 yards with it. He used it for long range target shooting, but it didn't have the huge target stock. Although it must've weighed as much as my leg. Does this round have any hunting use? I was also told that this round is now the Rem. 300 Ultra Mag. Any truth to this? I don't have any interest in buying the gun, just interest in knowing more.
first, yes, this round has a LOT of hunting use. you can use it for anything from deer to moose with good quality bullets. second, no, it is not the 300 RUM. it is a .378 Weatherby necked down to 30 caliber. the 300 RUM is a modified .404 Jeffery case IIRC. and Rman, the 338-378 is a great round but it wont do anything faster than a comparable load in a 30-378. less bullet weight in the same case size means more velocity...
30-06 till i die, the greatest round ever! I carry a gun because a cop is too heavy! CEO of a Turdlike People: Turds & Tats Division... (per Ingwe )
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Joined: Dec 2006
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Campfire Ranger
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Campfire Ranger
Joined: Dec 2006
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I dont know Marty...the 338/378 will shove a 300 grain SMK at 3K.
Dats fast and flat.
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Joined: Dec 2005
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Campfire Regular
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Campfire Regular
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That's what I was talking about. That big 300 grainer will resist wind better and it scoots as well. Lighter bullets will go faster, but not as far, as well (if that makes sense). With all that case capacity, it just begs for the slick .338 bullets availible.
R.
You can run, but you'll just die tired.
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Joined: Jun 2007
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Campfire Ranger
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Campfire Ranger
Joined: Jun 2007
Posts: 24,716 Likes: 48 |
I don't know how, within safe pressures, a 338-378 will get a 300 grain bullet to 3000 fps, but I do know a 30-378 will easily get a 200 grain Accubond to 3300 fps. At 800 yards, almost anything is in real trouble...
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Campfire 'Bwana
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Campfire 'Bwana
Joined: Apr 2005
Posts: 31,004 Likes: 10 |
The BC of the 300 grain Berger at .891 averaged through the velocity bands will get to 1000 yards and beyound with more velocity and more smack than will any 30 cal 200 grain bullet. To fully appreciate the 338's one only has to shoot the 300 grainers at distance once
I got banned on another web site for a debate that happened on this site. That's a first
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Joined: Oct 2006
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Campfire Ranger
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Campfire Ranger
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I dont know Marty...the 338/378 will shove a 300 grain SMK at 3K.
Dats fast and flat.
Wow Tom! I would be curious as to what load and barrel length those numbers are from? With my 338-378, about the best I could do with a 300gr SMK was 2800 or so-that out of a 26" tube. Still, an accurate flat shooting SOB.
"For joy of knowing what may not be known we take the golden road to Samarkand." James Elroy Flecker
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Joined: Apr 2005
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Campfire 'Bwana
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Campfire 'Bwana
Joined: Apr 2005
Posts: 31,004 Likes: 10 |
I dont know Marty...the 338/378 will shove a 300 grain SMK at 3K.
Dats fast and flat.
Wow Tom! I would be curious as to what load and barrel length those numbers are from? With my 338-378, about the best I could do with a 300gr SMK was 2800 or so-that out of a 26" tube. Still, an accurate flat shooting SOB. What powder and load? I know a lot of guy's getting 29 to 2950 with 300 SMK's out of 338/378 I get 2800 FPS out of my 338 Lapua with a 30" barrel and 92 grains of H-1000
I got banned on another web site for a debate that happened on this site. That's a first
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Joined: Oct 2006
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Campfire Ranger
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Campfire Ranger
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JWP, I was also using H1000, though I don't recall off the top of my head what charge weight. 2900-2950 is quite impressive.
"For joy of knowing what may not be known we take the golden road to Samarkand." James Elroy Flecker
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Joined: Apr 2005
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Campfire 'Bwana
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Campfire 'Bwana
Joined: Apr 2005
Posts: 31,004 Likes: 10 |
IMHO H-1000 is just a tad fast in the large 338/378 case for top velocity. Retumbo, H-50BMG and US-869 being better able to add a bit more velocity. 3000 FPS is asking a lot of the 338/378. Darylle Cassle used a 338/416 Rigby with I believe had 38" barrel and achieved 3350 FPS with the 300 SMK, with which he took a Bull Elk at 2100 yards. I believe that his case life was, "shoot them once and throw away". The 378 Whea. is based on the 416 Rigby case.
I got banned on another web site for a debate that happened on this site. That's a first
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Joined: Oct 2006
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Campfire Ranger
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Campfire Ranger
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Yes, I wish I had given the slower powders a try in my 338-378. I sold mine about 6 years ago? and the slowest powder I tried was RL25. Even with that I was hard pressed to obtain 3000 fps with a 250 gr partition. In my 340 Wby, I used to only use RL22 and IMR7828, but never saw great accuracy or outstanding velocity. I finally tried RL25 in the 340, thinking it would probably be too slow-it works fantastic! I see an easy 3100 fps with the 225 gr TSX and sub MOA accuracy. I am pretty pleased with that.
"For joy of knowing what may not be known we take the golden road to Samarkand." James Elroy Flecker
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Joined: Apr 2005
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Campfire 'Bwana
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Campfire 'Bwana
Joined: Apr 2005
Posts: 31,004 Likes: 10 |
My 338 Lapua is maybe average in speed with the 300 SMK, but it is extremely fast with the 250 SMk I got 3190 FPS with 98 grains of H-1000 and 3200 with 95 grains of R-25. These are book loads.
Every barrel is a law unto itself and no way to predict results until one shoots thenm over a Chronograph
I got banned on another web site for a debate that happened on this site. That's a first
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Campfire Ranger
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Campfire Ranger
Joined: May 2009
Posts: 17,308 Likes: 9 |
Those 338's are awesome. We just need a super high BC 300 grain Accubond or similar...
Heck I would do cartwheels for a 350 gr accubond for my 375 snipetac!
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Joined: Dec 2006
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Campfire Ranger
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Campfire Ranger
Joined: Dec 2006
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I dont know Marty...the 338/378 will shove a 300 grain SMK at 3K.
Dats fast and flat.
Wow Tom! I would be curious as to what load and barrel length those numbers are from? With my 338-378, about the best I could do with a 300gr SMK was 2800 or so-that out of a 26" tube. Still, an accurate flat shooting SOB. The load was 111.5 grains of IMR 5010 loaded to an overall length of 4.135" with the 300 grain SMK bullet out of a 30" bbl. Brass was 378 Weatherby and primers were Federal 215's
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Campfire Regular
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Campfire Regular
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Another load to work up to is 110 grains of US869, with a 300 grain bullet.
R.
You can run, but you'll just die tired.
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Joined: Nov 2003
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Campfire Ranger
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Campfire Ranger
Joined: Nov 2003
Posts: 28,964 Likes: 6 |
What happened to H870? About thirty-five years ago I bought a .30-.378 and used 118 grains of H870 with a Sierra bullet. I haven't seen it for awhile.
I traded it and the poor rifle burned in a fire before the new owner got to fire it. Life just ain't fair.
"Only Christ is the fullness of God's revelation." Everyday Hunter
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