|
Joined: Sep 2003
Posts: 14,807
Campfire Outfitter
|
Campfire Outfitter
Joined: Sep 2003
Posts: 14,807 |
Here are the targets that he sent me. The 120 gr load lists 3150 fps over the chrono! This man was the 5th ranking Br. competitor (for score).
All guns should be locked up when not in use!
|
|
|
|
Joined: Aug 2005
Posts: 15,652 Likes: 3
Campfire Ranger
|
OP
Campfire Ranger
Joined: Aug 2005
Posts: 15,652 Likes: 3 |
Guys- two things. Most manuals are soft on the loads for 284 and a 284 case is within a few grains of a 280Rem capacity, basically the same. So do you think a 7-08 is within 100fps of a 280Rem? This is what I was thinking.... I'm no expert by any means, I'm just going by what my manuals say and word of mouth... Seems to me there is much more than 100fps between the 2, especially in the higher bullet weights... To me this is a lot when we're talking about a short action, no magnum comparison... My manuals list a top load in 7-08 with a 139 with H4350 at 2906fps with 55,721PSI.. Same manual lists top lod with .284 with a 139 with RL19 at 3075 at 53,500PSI... With a 160 in 7-08 I've got 2684 with H414 at 58,185PSI... With a 160 in .284 I've got 2888 with RL19 at 54,600PSI... Like I said, I'm just asking questions as well but would love to hear someone who has chronied both the 7-08 and .284....
- Greg
Success is found at the intersection of planning, hard work, and stubbornness.
|
|
|
|
Joined: Apr 2001
Posts: 28,277
Campfire Ranger
|
Campfire Ranger
Joined: Apr 2001
Posts: 28,277 |
Greg-what were you using to measure your pressures?
Thx
Mark D
"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 2005
Posts: 57,494
Campfire Kahuna
|
Campfire Kahuna
Joined: Jan 2005
Posts: 57,494 |
Ya know, everyone touts bullet drop. Frankly who cares about bullet drop? Thats so easily overcome correctly and easily.
Wind drift is another issue, I"m good at high BC numbers in 223 wind drift. Not good at anything else. Generally though you boot the same bullet 200 FPS faster, its a fairly significant wind drift number in my mind, especially further out. Wind is the iffy factor, not drop, IMHO.
I'm really rolling towards 284 now, the AI round almost had my vote but recent discussions and reading, especially that feeding can be overcome(I saw a few XC rapid fire bolt guns in 6.5x284 some years back-- but they were barrel burners-- but it tells me feeding can be handled...)
Jeff
We can keep Larry Root and all his idiotic blabber and user names on here, but we can't get Ralph back..... Whiskey Tango Foxtrot, over....
|
|
|
|
Joined: Aug 2002
Posts: 14,475
Campfire Outfitter
|
Campfire Outfitter
Joined: Aug 2002
Posts: 14,475 |
I'm really sold on the 284 case, so much so in fact I prefer that case over the short mags. One more in the belly and a slimmer stock to boot.
|
|
|
|
Joined: Apr 2003
Posts: 11,741
Campfire Outfitter
|
Campfire Outfitter
Joined: Apr 2003
Posts: 11,741 |
Mark, Those pressures are out of a load book, probably Alliant although I can't be sure but that's the way I read his post.
But as for me and my house we will serve the Lord. Joshua 24:15 I can do all things through Christ who strengthens me. Phil. 4:13
I DON'T NEED A WSM AS I HAVE A WEATHERBY!
|
|
|
|
Joined: Apr 2003
Posts: 11,741
Campfire Outfitter
|
Campfire Outfitter
Joined: Apr 2003
Posts: 11,741 |
Greg, Meant to add I have not chrono'd the 7-08 but will and have chrono'd the 284. For mine, max was 120BT's at 3200 139's at 3000 150's at 2900
The 150's were of interest to me but sold it prior to further investigation.
Dave
But as for me and my house we will serve the Lord. Joshua 24:15 I can do all things through Christ who strengthens me. Phil. 4:13
I DON'T NEED A WSM AS I HAVE A WEATHERBY!
|
|
|
|
Joined: Aug 2005
Posts: 15,652 Likes: 3
Campfire Ranger
|
OP
Campfire Ranger
Joined: Aug 2005
Posts: 15,652 Likes: 3 |
Greg-what were you using to measure your pressures?
Thx
Mark D Hey Mark... They were out of a Lee reloading manual published in '04... However, consulting Hodgdon's website I'm getting the exact same loads and velocities for each caliber but the pressures are in CUP... Not sure on the conversions on these FWIW... Figure I'd quote the pressures along with the velocites....
Last edited by Gmoney; 04/19/07.
- Greg
Success is found at the intersection of planning, hard work, and stubbornness.
|
|
|
|
Joined: Dec 2002
Posts: 27,692
Campfire Ranger
|
Campfire Ranger
Joined: Dec 2002
Posts: 27,692 |
This thread really makes me miss the two .284's (1- Ruger Tang safety 1-Browning Micro-Medallion) I traded off.
HBB
Member: Clan of the Turdlike People.
Courage is Fear that has said its Prayers
�If we ever forget that we are one nation under God, then we will be a nation gone under.� Ronald Reagan.
|
|
|
|
Joined: May 2006
Posts: 2,111
Campfire Regular
|
Campfire Regular
Joined: May 2006
Posts: 2,111 |
This thread makes me very happy that Rackmaster decided to sell his .284 Model 70! Monashee
Support the BC Wildlife Federation
|
|
|
|
Joined: Jul 2005
Posts: 2,431
Campfire Regular
|
Campfire Regular
Joined: Jul 2005
Posts: 2,431 |
Haha...this thead makes me miss that damn gun........
|
|
|
|
Joined: Jul 2002
Posts: 3,233
Campfire Tracker
|
Campfire Tracker
Joined: Jul 2002
Posts: 3,233 |
A few random 284 thoughts.......... Mine is on a slimmed Ti action with a Wyatts box @ 2.975" Barrel is 21" Kreiger FW. The rifle weighs well under 6 lbs depending on the scope set up etc. Velocities top out comfortably in the 2935 fps range with various 139-140 gr bullets. FWIW.....I got well over that velocity but backed off because I just couldn't find a consensus of data that indicated that I should be getting any more than the range that I settled upon. My experience so far is that the 284 case is exceptionally strong and that it probably has the potential for equal velocities and greater case life than an improved case off of the .308 family. I have also owned a fair group of 7-08's and I'm of the mind that the average velocity difference is more or less maybe roughly 120-150 fps or so give or take a touch. Who dat say who dat when I say who dat??.......... JimF
|
|
|
|
Joined: Aug 2005
Posts: 15,652 Likes: 3
Campfire Ranger
|
OP
Campfire Ranger
Joined: Aug 2005
Posts: 15,652 Likes: 3 |
Who dat say who dat when I say who dat??.......... JimF You had me till here....grin....
- Greg
Success is found at the intersection of planning, hard work, and stubbornness.
|
|
|
|
Joined: Jul 2005
Posts: 6,064
Campfire Tracker
|
Campfire Tracker
Joined: Jul 2005
Posts: 6,064 |
Who dat say who dat when I say who dat??.......... JimF You had me till here....grin.... Yeah, just when you thought he knew what he was talking about.
|
|
|
|
Joined: Jul 2002
Posts: 3,233
Campfire Tracker
|
Campfire Tracker
Joined: Jul 2002
Posts: 3,233 |
Hey!!
I knew lotsa stuff about lotsa stuff.........once.
JimF
|
|
|
|
Joined: Feb 2002
Posts: 13,673 Likes: 2
Campfire Outfitter
|
Campfire Outfitter
Joined: Feb 2002
Posts: 13,673 Likes: 2 |
JimF- Glad to see you're still around!
|
|
|
|
Joined: Mar 2005
Posts: 3,722
Campfire Tracker
|
Campfire Tracker
Joined: Mar 2005
Posts: 3,722 |
Who dat got dat .284 Winchesta?
WAR EAGLE!
|
|
|
|
Joined: Jul 2001
Posts: 60,236 Likes: 29
Campfire Kahuna
|
Campfire Kahuna
Joined: Jul 2001
Posts: 60,236 Likes: 29 |
Approximate H2O capacities of the 7mm-08 and .284 with a 140 spitzer seated (measured with fired brass I have on hand):
7mm-08; 49 grains .284: 61 grains .280: 63 grains
According to the 1/4 rule, this means about a 6% velocity gain possible from the .284, in the same barrel length at the same pressure. If the 7mm-08 is capable of 2900 with a 140 (which is what I've found with those I've owned), then the .284 can get around 3075.
The 7mm-08 AI will be in between, but closer to the 7mm-08. I have only fooled with one, a rifle built but Kenny Jarrett. He sent along some of his handloads and they were SCARY, over 3200 with 140's. Kenny likes to step on the accelerator some.
Oddly enough, I have seen more feeding problems with 7-08 AI's than .284's, maybe because the .284's shoulder is 35 degrees, not 40 as in the AI. This should be that much difference, and maybe my experience was mere chance.
JB
Last edited by Mule Deer; 04/21/07.
“Montana seems to me to be what a small boy would think Texas is like from hearing Texans.” John Steinbeck
|
|
|
|
Joined: Jan 2004
Posts: 10,915
Campfire Outfitter
|
Campfire Outfitter
Joined: Jan 2004
Posts: 10,915 |
Mule Deer, How close would the 284 case necked up to 30 cal be in case capacity to the venerable '06? Hmmm....
|
|
|
|
Joined: Jul 2002
Posts: 3,233
Campfire Tracker
|
Campfire Tracker
Joined: Jul 2002
Posts: 3,233 |
Mule Deer, How close would the 284 case necked up to 30 cal be in case capacity to the venerable '06? Hmmm.... I think he already answered that with the 284/280 comparison. It seems like a pretty interesting answer too....... At one time recently I was considering a 30/350 RM (Cuz I have a 600 Magnum action rolling around on the floor)If that action were a std bolt face, I'd be thinkin' about a 30/284 myownself. JimF
|
|
|
|
568 members (257Bob, 10gaugemag, 222ND, 160user, 21, 260madman, 47 invisible),
2,644
guests, and
1,276
robots. |
Key:
Admin,
Global Mod,
Mod
|
|
Forums81
Topics1,194,368
Posts18,527,357
Members74,031
|
Most Online11,491 Jul 7th, 2023
|
|
|
|