The Firing Line Forums

Go Back   The Firing Line Forums > The Hide > The Art of the Rifle: Bolt, Lever, and Pump Action

Reply
 
Thread Tools
Old March 3, 2015, 08:01 AM   #1
boxjeff
Senior Member
 
Join Date: July 23, 2008
Location: New Hope, PA
Posts: 286
Wha tis the highest velocity ammo?

Anyone know what the highest velocity 308, 50 cal and 2.23 or 5.56 is?
boxjeff is offline  
Old March 3, 2015, 08:03 AM   #2
precision_shooter
Senior Member
 
Join Date: September 8, 2007
Location: DFW, Texas
Posts: 1,860
Highest velocity will be the lowest weight bullet from each of those calibers.
__________________
"Laws that forbid the carrying of arms...disarm only those who are neither inclined nor determined to commit crimes...Such laws make things worse for the assaulted and better for the assailants; they serve rather to encourage than to prevent homicides, for an unarmed man may be attacked with greater confidence than an armed man." - Thomas Jefferson, 1776
precision_shooter is offline  
Old March 3, 2015, 08:27 AM   #3
bedlamite
Senior Member
 
Join Date: August 10, 2000
Location: WI
Posts: 1,092
__________________
A plan is just a list of things that doesn't happen.
bedlamite is offline  
Old March 3, 2015, 08:38 AM   #4
boxjeff
Senior Member
 
Join Date: July 23, 2008
Location: New Hope, PA
Posts: 286
wow

Are there any product out there that have a velocity like that?
boxjeff is offline  
Old March 3, 2015, 08:44 AM   #5
Art Eatman
Staff Lead
 
Join Date: November 13, 1998
Location: Terlingua, TX, USA
Posts: 22,753
The fastest factory load that I know of was the .220 Swift with a 40-grain bullet at 4,140 ft/sec.

The factory '06 load with a 110-grain bullet was advertised at around 3,500 ft/sec. I handloaded some 80-grain bullets to some 3,900 ft/sec.

I've read that the ball load in .50 Browning has a muzzle velocity of 3,300 ft/sec.

Phil Sharpe lists a load for the .22 Savage HiPower at 3,900 ft/sec, using a 40-grain bullet and a lot of 2400.

.223/5.56? I've seen claims of some 3,200 ft/sec.
__________________
You're from BATFE? Come right in! I use all your fine products!
Art Eatman is offline  
Old March 3, 2015, 09:52 AM   #6
precision_shooter
Senior Member
 
Join Date: September 8, 2007
Location: DFW, Texas
Posts: 1,860
Quote:
The fastest factory load that I know of was the .220 Swift with a 40-grain bullet at 4,140 ft/sec.

The factory '06 load with a 110-grain bullet was advertised at around 3,500 ft/sec. I handloaded some 80-grain bullets to some 3,900 ft/sec.

I've read that the ball load in .50 Browning has a muzzle velocity of 3,300 ft/sec.

Phil Sharpe lists a load for the .22 Savage HiPower at 3,900 ft/sec, using a 40-grain bullet and a lot of 2400.

.223/5.56? I've seen claims of some 3,200 ft/sec.
The 204 Ruger is the fastest factory round I know of. With light bullets it can have speeds in excess of 4,300 fps, and even faster if you hand-load.
Edit: Hornady lists their 24gr NTX Superformance 204 Ruger ammo at 4,400 fps...
__________________
"Laws that forbid the carrying of arms...disarm only those who are neither inclined nor determined to commit crimes...Such laws make things worse for the assaulted and better for the assailants; they serve rather to encourage than to prevent homicides, for an unarmed man may be attacked with greater confidence than an armed man." - Thomas Jefferson, 1776
precision_shooter is offline  
Old March 3, 2015, 12:16 PM   #7
tobnpr
Senior Member
 
Join Date: August 1, 2010
Location: Tampa Bay
Posts: 3,364
What twist rate is common on these barrels to keep the bullets from disintegrating at over 4000 fps?
__________________
Custom Bent Bolts and Gunstocks for the Mosin-Nagant
www.biggorillagunworks.com
tobnpr is offline  
Old March 3, 2015, 12:19 PM   #8
precision_shooter
Senior Member
 
Join Date: September 8, 2007
Location: DFW, Texas
Posts: 1,860
Quote:
What twist rate is common on these barrels to keep the bullets from disintegrating at over 4000 fps?
1:12 for the 204 Ruger.
1:14 for the 220 Swift.
__________________
"Laws that forbid the carrying of arms...disarm only those who are neither inclined nor determined to commit crimes...Such laws make things worse for the assaulted and better for the assailants; they serve rather to encourage than to prevent homicides, for an unarmed man may be attacked with greater confidence than an armed man." - Thomas Jefferson, 1776

Last edited by precision_shooter; March 3, 2015 at 12:31 PM.
precision_shooter is offline  
Old March 3, 2015, 12:34 PM   #9
Mosin-Marauder
Senior Member
 
Join Date: April 18, 2014
Location: North Carolina
Posts: 1,687
I've hit 3,200 +/- with 123 Grain Soft Points out of the Mosin, and that was a moderate charge, too.
__________________
Proud owner of three pieces of history!
K-31, Mosin-Nagant M91/30, M24/47 Mauser.

propter quod dicit surge qui dormis et exsurge a mortuis et inluminabit tibi Christus
Mosin-Marauder is offline  
Old March 3, 2015, 12:42 PM   #10
boxjeff
Senior Member
 
Join Date: July 23, 2008
Location: New Hope, PA
Posts: 286
The 204 is a really small round. What are its penetration abilities?
boxjeff is offline  
Old March 3, 2015, 12:47 PM   #11
603Country
Senior Member
 
Join Date: January 6, 2011
Location: Thornton, Texas
Posts: 2,462
I imagine that among factory cartridges, if handloaded, the 220 Swift could be run up to somewhere in the range of 4,500 fps with a 35 grain bullet. Also, I believe that the 220 Rocket was once a factory round from Weatherby. It's basically a 220 Ackley Improved, with that rounded Weatherby shoulder. Probably that could hit an even higher MV.

Art, didn't you get your Swift up to some amazing MV with little bullets?
603Country is offline  
Old March 3, 2015, 01:37 PM   #12
precision_shooter
Senior Member
 
Join Date: September 8, 2007
Location: DFW, Texas
Posts: 1,860
Quote:
The 204 is a really small round. What are its penetration abilities?
It's a varmint round. From Groundhogs to Raccoons/Foxes to Coyotes. It's an "explosive" round. Lots of energy dumped all at once.
__________________
"Laws that forbid the carrying of arms...disarm only those who are neither inclined nor determined to commit crimes...Such laws make things worse for the assaulted and better for the assailants; they serve rather to encourage than to prevent homicides, for an unarmed man may be attacked with greater confidence than an armed man." - Thomas Jefferson, 1776
precision_shooter is offline  
Old March 3, 2015, 01:40 PM   #13
BoogieMan
Senior Member
 
Join Date: April 4, 2012
Location: South Jersey
Posts: 1,470
308 Warbird is in the 3900's
5.56/223- 22-378 Wthby was rumored to break 5000fps
204 Ruger is 4400fps in factory ammo.
__________________
Concentrated power is not rendered harmless by the good intentions of those who create it.
Milton Freidman
BoogieMan is offline  
Old March 3, 2015, 02:32 PM   #14
wogpotter
Senior Member
 
Join Date: September 27, 2004
Posts: 3,796
Are we disregarding saboted ammo?
55gr .223 in a 300WinMag should be stepping out there at a rate of knots?
__________________
Allan Quatermain: “Automatic rifles. Who in God's name has automatic rifles”?

Elderly Hunter: “That's dashed unsporting. Probably Belgium.”
wogpotter is offline  
Old March 3, 2015, 02:42 PM   #15
Roadkill2228
Senior Member
 
Join Date: March 8, 2014
Location: Nipawin, Saskatchewan
Posts: 136
Is the op specifically asking about the fastest ammo for .308/7.62, .223/5.56, and .50bmg? Or just a blanket question of what firearm and cartridge combo has the highest mv? Is the question simply a matter of curiosity (a fine reason to ask) or is there a desire to possess a super fast gun for a specific application? If the latter is the case, muzzle velocity isn't everything...the monster .22 centerfires are the fastest guns around (and that .204 and the 17s too I guess) but out beyond their mpbr they really start losing to the larger caliber rounds.
Roadkill2228 is offline  
Old March 3, 2015, 02:54 PM   #16
old man jim
Junior Member
 
Join Date: February 23, 2015
Location: Roane Co. WV
Posts: 2
Swift

I believe that back in the 50's and early 60's the swift was clocked at 4600 - 4800 fps in the old loading manuals. A gunsmith friend of mine told me he regularly shot over 4600 with his, I was only 15 at the time and have no idea what he was loading.

His influence caused me to build a swift later in life, mauser action, douglas 1 1/2" straight barrel air gauged at .2235 in a fajen benchrest stock with a 30x lichert on top. took a while to work up the right load due to the tight barrel, but 10 shots at 150 yards could be covered with a nickle. Had no way to measure velocity, still just a kid then (23).
old man jim is offline  
Old March 3, 2015, 05:30 PM   #17
98 220 swift
Senior Member
 
Join Date: January 4, 2015
Location: Perryville MO
Posts: 141



220 swift. 36gr varmint grenade. Bolt got a little sticky with this load. It did not shoot the 36gr well. It likes the 40gr vmax right at 4500 fps. 1-16" twist
98 220 swift is offline  
Old March 3, 2015, 06:22 PM   #18
mapsjanhere
Senior Member
 
Join Date: August 6, 2009
Location: Albuquerque
Posts: 2,435
Quote:
Bolt got a little sticky with this load.
I have to remember that expression next time I have to explain one of those "that was dumb" moments.
__________________
I used to love being able to hit hard at 1000 yards. As I get older I find hitting a mini ram at 200 yards with the 22 oddly more satisfying.
mapsjanhere is offline  
Old March 3, 2015, 06:28 PM   #19
BillM
Senior Member
 
Join Date: January 20, 2009
Location: Amity Oregon
Posts: 396
204 advertised at 4,225

223 WSSM factory 4,4352

223 WSSM Monolith Munitions 40 gr---claims 4,700

And there is webpage where 5,329 is stated out of a 22BR Improved
pushing a 30 gr Berger.

50 BMG sabot claims 5,900

30-378 wildcat with a alloy bullet---6,000+
BillM is offline  
Old March 3, 2015, 06:35 PM   #20
979Texas
Member
 
Join Date: January 24, 2015
Location: College Station, Texas
Posts: 55
.223 WSSM, .204 Ruger, and. 220 Swift are the fastest one I know of depending on bullet weights.
979Texas is offline  
Old March 3, 2015, 09:02 PM   #21
Art Eatman
Staff Lead
 
Join Date: November 13, 1998
Location: Terlingua, TX, USA
Posts: 22,753
My only Swift load was with the Sierra 52-grain HPBT. Per the Sierra book, around 3,900. Did Really. Bad. Things. to feral cats at 300 and 400 yards.
__________________
You're from BATFE? Come right in! I use all your fine products!
Art Eatman is offline  
Old March 3, 2015, 09:42 PM   #22
reynolds357
Senior Member
 
Join Date: December 10, 2012
Posts: 2,876
I am in the process of building a .22/270 WSM. It should handily beat the SWIFT.
reynolds357 is offline  
Old March 3, 2015, 10:19 PM   #23
979Texas
Member
 
Join Date: January 24, 2015
Location: College Station, Texas
Posts: 55
For the .223 the fastest commercial ammo that I could find was the Hornady NTX 35 grain, it is advertised at 4000 fps. For the .308 the fastest commercial ammo that I could find for it was the RBCD Ammunition Ballistics TFSP 112 grain bullet at 3650 fps.
979Texas is offline  
Old March 4, 2015, 05:51 AM   #24
kawasakifreak77
Senior Member
 
Join Date: December 16, 2007
Location: St. John, Ks.
Posts: 248
What's the useful barrel life in round count on these cartridges pushing 4000 fps+ ?
__________________
Looking for 6.5mm 142gr SMKs or 120gr GMXs. If you have some to sell, pm me!
kawasakifreak77 is offline  
Old March 4, 2015, 08:32 AM   #25
waveslayer
Senior Member
 
Join Date: August 22, 2013
Posts: 108
I'm shooting a Lazzeroni Warburd. 150gr. 30 cal bullet at 3707 out of the muzzle out of my hunting rifle. Love that round!
waveslayer is offline  
Reply

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -5. The time now is 07:10 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2015, vBulletin Solutions, Inc.
This site and contents, including all posts, Copyright © 1998-2015 S.W.A.T. Magazine
Copyright Complaints: Please direct DMCA Takedown Notices to the registered agent: thefiringline.com
Contact Us
Page generated in 0.14623 seconds with 9 queries