boomer68
Handloader
- Oct 23, 2006
- 862
- 59
I have the chance to buy a M700 that someone has shortened the barrel to 20". Any idea on how much velocity I would loose compared to a 24"?
.375 H&H 20" barrel
- Thread starter boomer68
- Start date
truck driver
Ammo Smith
- Mar 11, 2013
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Just a guess but at 60fps per inch about 240fps to 250fps but not sure.
DrMike
Ballistician
- Nov 8, 2006
- 37,402
- 6,213
QL projects a loss of ~120 fps. For long distances, that could be a problem. For anything under 300 yards, it wouldn't be a serious detriment. The rule of thumb for calculating velocity differential is 25-35 fps per inch.
truck driver
Ammo Smith
- Mar 11, 2013
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I must have been think about the yardage on the ground hog I shot just before I posted the 60fps. I know there is around 30fps per inch loss just posted what I was thinking at the time and I was thinking about the yardage on the ground hog ( 60yds ). I have to hold under at that close with the 257 Roberts its 4 inches high at 50yds. :grin:DrMike":1e9lrpb0 said:
I'm shooting off the deck on the back of my house and have a large field and hill behind it.
Guy Miner
Master Loader
- Apr 6, 2006
- 17,789
- 6,036
I believe quite a few guides and others have shortened their .375's down to the 20 - 22" lengths, making the rifles handier in thick brush. Thinking brown bear in the alders here...
Suspect that you could still easily see 2400 fps with 300 gr bullets, and a couple of hundred fps over that with 260's or 270's.
Speculation on my part. My Ruger has a 24" barrel and I generally get 2500 - 2550 with 300's and 2600 - 2700 fps with 260's & 270's.
Guy
Suspect that you could still easily see 2400 fps with 300 gr bullets, and a couple of hundred fps over that with 260's or 270's.
Speculation on my part. My Ruger has a 24" barrel and I generally get 2500 - 2550 with 300's and 2600 - 2700 fps with 260's & 270's.
Guy
Thebear_78
Handloader
- Sep 30, 2004
- 3,098
- 865
We cut one down from 26 to 16"and checked velocity loss. I can't remember exact numbers off the top of my head but it was negligitable until you went below 19" then showed a increasing decline. I know I went 20" and never looked back. Some factory loads showed almost no loss and definitely less than 125fps when compared to 24". The fairly fast powders used in 375 work great out of 20". The same cannot be said for cartridges like 300 rum.
- Thread starter
- #8
boomer68
Handloader
- Oct 23, 2006
- 862
- 59
Once the weather gets better, I want to run some loads over the chrono. Heck, even 100fps is not that bad considering the handiness.
- Nov 4, 2004
- 25,343
- 8,904
Talk about a big stick in a small bundle
JD338
JD338
- Thread starter
- #10
boomer68
Handloader
- Oct 23, 2006
- 862
- 59
Here are a few pics.
gerry
Ammo Smith
- Mar 1, 2007
- 6,908
- 1,791
That is a nice looking gun, I wouldn't shy away from a 20" barrel on a 375.
Rem Jim
Handloader
- Jan 7, 2012
- 688
- 9
Makes a NICE handling rifle that 20 " er and it will still be a 300 yard cartridge with plenty of Jam ! JMO RJ
DrMike
Ballistician
- Nov 8, 2006
- 37,402
- 6,213
Very handsome rifle. I wouldn't be concerned about a twenty-inch barrel in that chambering.
Guy Miner
Master Loader
- Apr 6, 2006
- 17,789
- 6,036
Oh yeah, I'd hunt with that!
What a great looking Lil' Thumper that thing could turn out to be... :grin:
Rifles with shorter barrels, like that one, can be real quick and handy. I've got a .30-06 that I had a smith cut the barrel from 26" to 21" - that changed the entire dynamics of how the rifle felt in hand. Much better. My son and I haven't had any problem ringing the gong with it at 300 yards either and he keeps filling tags using it.
Our .308 Win Browning BLR has only a 20" barrel. Works great!
The .30-30 Marlin-Glenfield has a 20" barrel. Plenty long enough.
Had a .45/70 Marlin "Guide Gun" with the 18.5" ported barrel. YOWZA! Noisy little rascal, but I loved the way it handled.
My 5.56mm AR-15 has only a 16" barrel. Noisy but it handles GREAT.
Just some examples of shorter barreled rifles I've got, that all work just fine. Now I wouldn't want a stubby barrel on something like a .264 Win mag or a .257 Wby mag, or even a .300 Win mag. I think those high-velocity "overbore" cartridges are at their best with a longer barrel.
FWIW, Guy
What a great looking Lil' Thumper that thing could turn out to be... :grin:
Rifles with shorter barrels, like that one, can be real quick and handy. I've got a .30-06 that I had a smith cut the barrel from 26" to 21" - that changed the entire dynamics of how the rifle felt in hand. Much better. My son and I haven't had any problem ringing the gong with it at 300 yards either and he keeps filling tags using it.
Our .308 Win Browning BLR has only a 20" barrel. Works great!
The .30-30 Marlin-Glenfield has a 20" barrel. Plenty long enough.
Had a .45/70 Marlin "Guide Gun" with the 18.5" ported barrel. YOWZA! Noisy little rascal, but I loved the way it handled.
My 5.56mm AR-15 has only a 16" barrel. Noisy but it handles GREAT.
Just some examples of shorter barreled rifles I've got, that all work just fine. Now I wouldn't want a stubby barrel on something like a .264 Win mag or a .257 Wby mag, or even a .300 Win mag. I think those high-velocity "overbore" cartridges are at their best with a longer barrel.
FWIW, Guy
- Nov 4, 2004
- 25,343
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Nice
Buy it and don't look back
JD338
Buy it and don't look back
JD338
Guy Miner
Master Loader
- Apr 6, 2006
- 17,789
- 6,036
Agree. I know there's better "stopping rifles" but I think the .375 will do just fine for anything I feel a need to hunt.
- Thread starter
- #19
boomer68
Handloader
- Oct 23, 2006
- 862
- 59
Ok, you guys twisted my arm and I ended up buying it.
Good thing I have all that H&H brass, die set and bullets...lol
Good thing I have all that H&H brass, die set and bullets...lol
DrMike
Ballistician
- Nov 8, 2006
- 37,402
- 6,213
Now, you need to post a few pictures, including a few pictures of targets after some range time. :grin: You've got a bunch of us all torqued up.
