|
|
Joined: Mar 2006
Posts: 14,560 Likes: 7
Campfire Outfitter
|
Campfire Outfitter
Joined: Mar 2006
Posts: 14,560 Likes: 7 |
The 55gr SPSX would blow up on 4 out of every 5 shots at 3750fps from my .22-250 with 12" twist. If I slowed them down to 3600fps, not a single blow up. That was obviously the razor's edge of where that particular bullet could hold together.
|
|
|
|
|
Joined: Aug 2007
Posts: 115,424 Likes: 13
Campfire Sage
|
|
OP
Campfire Sage
Joined: Aug 2007
Posts: 115,424 Likes: 13 |
That was the same shoot where he set the forend on fire, and we had to dunk it in a big cooler of ice and water....
Beer coolers are good that for that... Travis
Trump being classless,tasteless and clueless as usual. Sorry, trump is a no tax payin pile of shiit. My young wife decided to play the field and had moved several dudes into my house
|
|
|
|
|
Joined: Aug 2007
Posts: 115,424 Likes: 13
Campfire Sage
|
|
OP
Campfire Sage
Joined: Aug 2007
Posts: 115,424 Likes: 13 |
The 55gr SPSX would blow up on 4 out of every 5 shots at 3750fps from my .22-250 with 12" twist. If I slowed them down to 3600fps, not a single blow up. That was obviously the razor's edge of where that particular bullet could hold together. Yeah, they come unglued (regardless of twist) when you really push them. I'm pretty sure Hornady doesn't recommend them past 3,400fps. The only other bullets I've had behave like that were some Nosler seconds. Nosler told me they were bleed overs from a bullet they made for the Australian market. Wicked accurate, just too thin jacketed for the fast twist, high velocity rounds. Travis
Trump being classless,tasteless and clueless as usual. Sorry, trump is a no tax payin pile of shiit. My young wife decided to play the field and had moved several dudes into my house
|
|
|
|
|
Joined: Aug 2011
Posts: 4,806
Campfire Tracker
|
|
Campfire Tracker
Joined: Aug 2011
Posts: 4,806 |
I think I'm going to have "silly [bleep]" etched into that new barrel. Bet they'd be happy to.
Be Polite , Be Professional , but have a plan to kill everybody you meet
-General James Mattis United States Marine Corps
Nothing is darker than a mau mau's moo moo.
|
|
|
|
|
Joined: Aug 2007
Posts: 115,424 Likes: 13
Campfire Sage
|
|
OP
Campfire Sage
Joined: Aug 2007
Posts: 115,424 Likes: 13 |
I think I'm going to have "silly [bleep]" etched into that new barrel. Bet they'd be happy to. Who would be happy to? Do you have a link? I'm getting "Dong Kong" on my next tube. Travis
Trump being classless,tasteless and clueless as usual. Sorry, trump is a no tax payin pile of shiit. My young wife decided to play the field and had moved several dudes into my house
|
|
|
|
|
Joined: May 2005
Posts: 10,454
Campfire Outfitter
|
|
Campfire Outfitter
Joined: May 2005
Posts: 10,454 |
My gunsmiths have been using Krieger 1:8 twist barrels on their .30 cal. long range rifles for years. The results of a 200gr Matchking on deer, elk, bear, and moose have sold many rifles by word-of-mouth, as well as repeat customers.
"Civilized men are more discourteous than savages because they know they can be impolite without having their skulls split, as a general thing."
Robert E. Howard
|
|
|
|
|
Joined: Sep 2009
Posts: 13,860
Campfire Outfitter
|
|
Campfire Outfitter
Joined: Sep 2009
Posts: 13,860 |
My gunsmiths have been using Krieger 1:8 twist barrels on their .30 cal. long range rifles for years. The results of a 200gr Matchking on deer, elk, bear, and moose have sold many rifles by word-of-mouth, as well as repeat customers. A 1 in 11 308 with 175 Sierras is an accurate combo. I have no idea what would be optimum for say, 190gr Bergers from a 300 win mag. Any ideas, anyone?
|
|
|
|
|
Joined: Jul 2001
Posts: 60,226 Likes: 27
Campfire Kahuna
|
|
Campfire Kahuna
Joined: Jul 2001
Posts: 60,226 Likes: 27 |
The standard .30-caliber 1-10 twist is plenty for any high-BC lead-cored bullet up to 210-215 grains.
Above that and a faster twist might be needed under certain conditions, but Berger even lists their 230-grain bullets as OK in a 1-10 under most conditions.
“Montana seems to me to be what a small boy would think Texas is like from hearing Texans.”
John Steinbeck
|
|
|
|
|
Joined: Sep 2009
Posts: 13,860
Campfire Outfitter
|
|
Campfire Outfitter
Joined: Sep 2009
Posts: 13,860 |
Thx MD, I'm pondering a heavy-barreled (with a Fat Bastard brake) 30cal mag
|
|
|
|
|
Joined: Nov 2002
Posts: 21,826 Likes: 3
Campfire Ranger
|
|
Campfire Ranger
Joined: Nov 2002
Posts: 21,826 Likes: 3 |
FWIW:
Best ballistic stunt I ever saw was a 22 hornet boolet (36 grains?) driven over 4,000 fps in a 220 swift (from a Ruger #1 varmint rifle).
It "puffed" at about 30 yards and completely disappeared. Not a mark on the target.
As for twist, faster is better.
Also, Travis-GFY.
BMT
"The Church can and should help modern society by tirelessly insisting that the work of women in the home be recognized and respected by all in its irreplaceable value." Apostolic Exhortation On The Family, Pope John Paul II
|
|
|
|
|
Joined: Aug 2007
Posts: 115,424 Likes: 13
Campfire Sage
|
|
OP
Campfire Sage
Joined: Aug 2007
Posts: 115,424 Likes: 13 |
Trump being classless,tasteless and clueless as usual. Sorry, trump is a no tax payin pile of shiit. My young wife decided to play the field and had moved several dudes into my house
|
|
|
|
|
Joined: Dec 2008
Posts: 78,306 Likes: 2
Campfire Oracle
|
|
Campfire Oracle
Joined: Dec 2008
Posts: 78,306 Likes: 2 |
"...the left considers you vermin, and they'll kill you given the chance..." Bristoe
|
|
|
|
|
Joined: Aug 2007
Posts: 115,424 Likes: 13
Campfire Sage
|
|
OP
Campfire Sage
Joined: Aug 2007
Posts: 115,424 Likes: 13 |
Trump being classless,tasteless and clueless as usual. Sorry, trump is a no tax payin pile of shiit. My young wife decided to play the field and had moved several dudes into my house
|
|
|
|
|
Joined: Dec 2008
Posts: 78,306 Likes: 2
Campfire Oracle
|
|
Campfire Oracle
Joined: Dec 2008
Posts: 78,306 Likes: 2 |
Dats more like it....
I'll leave you my 66 now.
"...the left considers you vermin, and they'll kill you given the chance..." Bristoe
|
|
|
|
|
Joined: May 2004
Posts: 56,228 Likes: 28
Campfire Kahuna
|
|
Campfire Kahuna
Joined: May 2004
Posts: 56,228 Likes: 28 |
Y'all grow 'maters in Montana too?
I am..........disturbed.
Concerning the difference between man and the jackass: some observers hold that there isn't any. But this wrongs the jackass. -Twain
|
|
|
|
|
Joined: Aug 2006
Posts: 22,952 Likes: 21
Campfire Ranger
|
|
Campfire Ranger
Joined: Aug 2006
Posts: 22,952 Likes: 21 |
|
|
|
|
|
Joined: Sep 2012
Posts: 8,738
Campfire Outfitter
|
|
Campfire Outfitter
Joined: Sep 2012
Posts: 8,738 |
FWIW:
Best ballistic stunt I ever saw was a 22 hornet boolet (36 grains?) driven over 4,000 fps in a 220 swift (from a Ruger #1 varmint rifle).
It "puffed" at about 30 yards and completely disappeared. Not a mark on the target.
As for twist, faster is better.
Also, Travis-GFY.
BMT
Pulled some bullets in my 300 WBY, 200gr with too much 7828ssc. Installed 110 round nose 30 carbine bullets. Did not chronograph, but they made it 100 yrd to paper. 1 1/4 group, grey dust behind paper. Plan to load some more and try it on a squirrel some time.
Sean
|
|
|
|
|
Joined: Jan 2006
Posts: 21,810
Campfire Ranger
|
|
Campfire Ranger
Joined: Jan 2006
Posts: 21,810 |
FWIW:
Best ballistic stunt I ever saw was a 22 hornet boolet (36 grains?) driven over 4,000 fps in a 220 swift (from a Ruger #1 varmint rifle).
It "puffed" at about 30 yards and completely disappeared. Not a mark on the target.
As for twist, faster is better.
Also, Travis-GFY.
BMT
You just have to limit your woodchuck shots to 30 yards and let the shrapnel kill them.
|
|
|
|
|
Joined: Feb 2006
Posts: 2,483
Campfire Regular
|
|
Campfire Regular
Joined: Feb 2006
Posts: 2,483 |
FWIW:
Best ballistic stunt I ever saw was a 22 hornet boolet (36 grains?) driven over 4,000 fps in a 220 swift (from a Ruger #1 varmint rifle).
It "puffed" at about 30 yards and completely disappeared. Not a mark on the target.
As for twist, faster is better.
Also, Travis-GFY.
BMT
You just have to limit your woodchuck shots to 30 yards and let the shrapnel kill them. Flechette round...............
|
|
|
|
|
Joined: May 2005
Posts: 10,454
Campfire Outfitter
|
|
Campfire Outfitter
Joined: May 2005
Posts: 10,454 |
The 8 twist gives the 200gr bullets greater rotational velocity, with an effect similar to what you saw with the fast twist .223 vs. standard twist Swift. (Except elk don't really blow up.) They're working on a fast twist .338/.378 for the 300gr Matchkings.
"Civilized men are more discourteous than savages because they know they can be impolite without having their skulls split, as a general thing."
Robert E. Howard
|
|
|
|
|
226 members (22kHornet, 1OntarioJim, 06hunter59, 320090T, 257 roberts, 3dtestify, 23 invisible),
1,205
guests, and
962
robots. |
|
Key:
Admin,
Global Mod,
Mod
|
|
|
Forums81
Topics1,194,093
Posts18,522,161
Members74,026
| |
Most Online11,491
Jul 7th, 2023
|
|
|
|
