|
|
Joined: Dec 2011
Posts: 48
Campfire Greenhorn
|
OP
Campfire Greenhorn
Joined: Dec 2011
Posts: 48 |
How does this cartridge perform with 22" barrels compared to 24"?
Thanks
Dan
|
|
|
|
|
Joined: Apr 2001
Posts: 28,277
Campfire Ranger
|
|
Campfire Ranger
Joined: Apr 2001
Posts: 28,277 |
The 24" tube will be about 39.7 fps faster...
Dober
"True respect starts with the way you treat others, and it is earned over a lifetime of demonstrating kindness, honor and dignity"....Tony Dungy
|
|
|
|
|
Joined: Jan 2009
Posts: 10,817
Campfire Outfitter
|
|
Campfire Outfitter
Joined: Jan 2009
Posts: 10,817 |
+2...........About a 20 fps per inch of shorter tube length.
That approx 40 fps velocity loss, will mean a difference between penetrating the vitals vs bouncing off the hide....LOL!!!
28 Nosler,,,,300WSM,,,,338-378 Wby,,,,375 Ruger
|
|
|
|
|
Joined: May 2008
Posts: 16,540
Campfire Ranger
|
|
Campfire Ranger
Joined: May 2008
Posts: 16,540 |
My experience with .30-06 case capacity cartridges in the .277" and smaller bore sizes leads me to the conclusion that the difference is closer to 40 fps per inch of tube.
QL agrees with my empirical data. They say your difference will be 75 fps between 22" and 24".
I wouldn't even consider a 6.5-284 with a sub 24" tube.
I'm torn between 24", 25" and 26" for my 6-284. Will likely go with 26" and do the experiment where I chronograph loads through the same barrel as I cut it down to 24".
Should be interesting at the range when I break out the hacksaw and lop an inch or two off my barrel!
The Chosin Few November to December 1950, Korea.
I'm not one of the Chosin Few but no more remarkable group of Americans ever existed.
|
|
|
|
|
Joined: Dec 2011
Posts: 441
Campfire Member
|
|
Campfire Member
Joined: Dec 2011
Posts: 441 |
I actually just ordered 6.5x284 today. Been toying with what length barrel for a week or so and just split the difference and went with 25". I would like to be over 2900 fps.
gary
|
|
|
|
|
Joined: Mar 2010
Posts: 7,866
Campfire Outfitter
|
|
Campfire Outfitter
Joined: Mar 2010
Posts: 7,866 |
Gary,
I got over 2900 out of my 24" tube with RL17, HV100 and Magpro. Shooting 140/2 grainers.
I originally thought I would use mine as a mountain rifle so put on a 24" number 4 contour. Eventually rebarreled to a 9.3x62 but if I ever get another 6.5x284 ( or Gibbs) she'll be built to run and have a min. 28".
Chris
It ain't what you don't know that makes you an idiot...it's what you know for certain, that just ain't so...
Most people don't want to believe the truth~they want the truth to be what they believe.
Stupidity has no average...
|
|
|
|
|
Joined: Dec 2011
Posts: 441
Campfire Member
|
|
Campfire Member
Joined: Dec 2011
Posts: 441 |
Thanks Chris, I am going to try 4350 and 4831SC first because I have some here. I will be shooting 140's hopefully between 2900 and 2950.
Gry
|
|
|
|
|
Joined: May 2009
Posts: 2,262
Campfire Regular
|
|
Campfire Regular
Joined: May 2009
Posts: 2,262 |
Love that cartridge. That being said, I wouldn't consider anything less than 24". I really like 25" in a hunting rifle so chambered, and might even go 26". For bench work, even longer.
What could be a sadder way to end a life than to die having never hunted with great dogs, good friends and your family?
|
|
|
|
|
Joined: Dec 2007
Posts: 16,209 Likes: 11
Campfire Ranger
|
|
Campfire Ranger
Joined: Dec 2007
Posts: 16,209 Likes: 11 |
I've had multiple 6.5-284 barrels...
Here's a sampling, all with the same reamer, and same load, H-4831-SC and 142 SMK's:
31" - 3050fps
30" - 3060fps
30" - 3090fps
18" - 2740fps
|
|
|
|
|
236 members (10gaugemag, 1minute, 264mag, 204guy, 1_deuce, 260Remguy, 28 invisible),
14,586
guests, and
1,080
robots. |
|
Key:
Admin,
Global Mod,
Mod
|
|
|
Forums81
Topics1,195,228
Posts18,543,955
Members74,060
| |
Most Online21,066
May 26th, 2024
|
|
|
|
