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Joined: Mar 2005
Posts: 17,527
Campfire Ranger
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Campfire Ranger
Joined: Mar 2005
Posts: 17,527 |
22-243 -or- 22-6mm. Not a lot of options to break the 4000k mark. My 22-250AI with 40's is at 4260 or so.
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Joined: Jan 2002
Posts: 4,303 Likes: 2
Campfire Tracker
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Campfire Tracker
Joined: Jan 2002
Posts: 4,303 Likes: 2 |
6mm-284 with 55 gr Nos bt. My 24" barrel with varget goes 4178 fps. A longer barrel should make your goal.
The high quality 6.5-284 lapua brass (necked down) still has tight primer pockets after 8 firings.
BTW the 6mm 55 gr NBT has a higher BC than the .224 55 gr NBT.
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Joined: Aug 2002
Posts: 7,445
Campfire Tracker
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Campfire Tracker
Joined: Aug 2002
Posts: 7,445 |
A 22-250 spitting 40 gr. NBT's.
Funny thing is when you start thinking ranges pass 250 yards or so and impact velocities builds go a whole different direction.
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Joined: Jan 2005
Posts: 8,759
Campfire Outfitter
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Campfire Outfitter
Joined: Jan 2005
Posts: 8,759 |
.22-6mm with a 40-50 grain bullet will fill that need.
This coyote was shot at 30 yards hit the shoulder blade with a 55 grain Nosler Ballistic Tip,with a muzzle velocity of 4000 fps.
Here is another coyote shot with the .22-6mm,but at 50 yards.
Good thing you had all that velocity. Might not've made it all the way out there without it.  
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Joined: Aug 2009
Posts: 96,170 Likes: 5
Campfire Oracle
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Campfire Oracle
Joined: Aug 2009
Posts: 96,170 Likes: 5 |
Yea,at 60 yards I might have shot under it. 
Life Member SCI
Life Member DSC
Member New Mexico Shooting Sports Association
Take your responsibilities seriously, never yourself-Ken Howell
Proper bullet placement + sufficient penetration = quick, clean kill. Finn Aagard
Ken
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Joined: Jun 2006
Posts: 46,315 Likes: 18
Campfire 'Bwana
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Campfire 'Bwana
Joined: Jun 2006
Posts: 46,315 Likes: 18 |
8 twist 6/06AI, run 105 Amax's
Dober Been thinking about this one for a while.
A wise man is frequently humbled.
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Joined: Mar 2005
Posts: 17,527
Campfire Ranger
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Campfire Ranger
Joined: Mar 2005
Posts: 17,527 |
8 twist 6/06AI, run 105 Amax's
Dober Been thinking about this one for a while. I have a hard time believing that round would come anywhere close to the 4000 fps mark. Probably more like 3300fps? I guess we need to define "speed demon."
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Joined: Jun 2006
Posts: 46,315 Likes: 18
Campfire 'Bwana
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Campfire 'Bwana
Joined: Jun 2006
Posts: 46,315 Likes: 18 |
You're probably right, but then again, I wasn't considering the OP's 4000 fps requirement myself.
IMHO, that case size is about as big as I'd want to go in 6 mm.
A wise man is frequently humbled.
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Joined: Mar 2005
Posts: 17,527
Campfire Ranger
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Campfire Ranger
Joined: Mar 2005
Posts: 17,527 |
I think the law of diminishing returns catches up real fast when talking about .22's and 6mm's.
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Joined: Dec 2004
Posts: 17,254 Likes: 1
Campfire Ranger
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Campfire Ranger
Joined: Dec 2004
Posts: 17,254 Likes: 1 |
As FVA mentions, I think more in terms of "impact velocity" as opposed to "muzzle velocity". Something that will push bullets of .375-.450 BC at 3,500 or so is going to be fast enough to be flat, but still arrive with a good chunk of retained speed inside of 500yds. What will a 6-06 AI do with the 87gr V-max?
Now with even more aplomb
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Joined: Feb 2011
Posts: 11,273
Campfire Outfitter
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Campfire Outfitter
Joined: Feb 2011
Posts: 11,273 |
I wonder if a 105 AM would tolerate being pushed over 3300ish, or if you'd start to see some core/jacket separation.
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Joined: Dec 2004
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Campfire Ranger
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Campfire Ranger
Joined: Dec 2004
Posts: 17,254 Likes: 1 |
I'd also think the plain .257Wby would be tough when paired with the 90gr BlitzKing. BC is almost .400 and it could likely make 3,700fps+ in most 26" barrels.
Now with even more aplomb
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Joined: Dec 2006
Posts: 24,851
Campfire Ranger
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Campfire Ranger
Joined: Dec 2006
Posts: 24,851 |
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Joined: Dec 2004
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Campfire Ranger
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Campfire Ranger
Joined: Dec 2004
Posts: 17,254 Likes: 1 |
There is that. What would it do with a 95gr V-Max?
Now with even more aplomb
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Joined: Jan 2009
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Campfire Outfitter
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Campfire Outfitter
Joined: Jan 2009
Posts: 8,934 Likes: 3 |
If looking for pure speed, build a big 17. Not sure why folks are talking about 25s when 4200 fps is mentioned as a goal.
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Joined: Dec 2004
Posts: 17,254 Likes: 1
Campfire Ranger
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Campfire Ranger
Joined: Dec 2004
Posts: 17,254 Likes: 1 |
Just offering a different outlook on the intended results. Running a .17cal 25gr V-max at 4,300 vs the .257 90gr Blitzking at 3,700, that 500fps MV advantage is gone by 275yds or so. The better BC just walks away after that. This is just pondering on a 400-500yd coyote gun.
Now with even more aplomb
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Joined: Dec 2006
Posts: 24,851
Campfire Ranger
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Campfire Ranger
Joined: Dec 2006
Posts: 24,851 |
There is that. What would it do with a 95gr V-Max? No idea but I imagine it would scream!!
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Joined: Mar 2005
Posts: 17,527
Campfire Ranger
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Campfire Ranger
Joined: Mar 2005
Posts: 17,527 |
There is no such thing as a point and shoot gun out to 400-500, but it can be achieved on a small target like a coyote with enough velocity within 300.
Ranging and spinning turrets while calling, when you are trying to sit completely still is impossible. That is why speed and flat shooting guns rule over turrets. Unless a dog hangs up and sits there barking at you at 400, you usually don't have time to set up for a shot. Really wide open country might be different, but not where I have traditionally called.
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Joined: Jan 2009
Posts: 8,934 Likes: 3
Campfire Outfitter
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Campfire Outfitter
Joined: Jan 2009
Posts: 8,934 Likes: 3 |
There is no such thing as a point and shoot gun out to 400-500, but it can be achieved on a small target like a coyote with enough velocity within 300.
Ranging and spinning turrets while calling, when you are trying to sit completely still is impossible. That is why speed and flat shooting guns rule over turrets. Unless a dog hangs up and sits there barking at you at 400, you usually don't have time to set up for a shot. Really wide open country might be different, but not where I have traditionally called. Completely agree. For a truck gun, a point and shoot cartridge is where it's at. 3-5 seconds is about all you get. Something like a 17-204 or 17 Predator with a Kindler Gold has the combination of BC and velocity for such shots, and the ability to spot your shots. If a guy has time to run a rangefinder and spin turrets, about anything with a decent BC will do.
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Joined: Oct 2007
Posts: 4,210
Campfire Tracker
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Campfire Tracker
Joined: Oct 2007
Posts: 4,210 |
.300/408 chey tac improved should boogie with 130tsxs or better yet 300/416 barret. Just suggestions I dont need anything that dumb.
Last edited by EddyBo; 02/11/13.
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