.366 D.G.W.
07-17-2003, 09:01 AM
#13
Typical Buck
Join Date: Feb 2003
Location: Greensboro NC USA
Posts: 563
RE: .366 D.G.W.
How this for a FLAT SHOOTING round:
This is my .270 B&B Mag:
130gr Nosler Ballistic Tip with 83gr (max load) IMR-7828 at muzzle = 3,863 fps/4,309 fpe
100yds: +3.10" ; 3,633 fps/3,811 fpe
200yds: +5.11" ; 3,410 fps/3,357 fpe
300yds: +4.22" ; 3,196 fps/2,949 fpe
400yds: 0.00" ; 2,989 fps/2,580 fpe
500yds: -7.95" ; 2,790 fps/2,248 fpe
600yds: -20.28" ; 2,598 fps/1,949 fpe
700yds: -37.60" ; 2,415 fps/1,684 fpe
800yds: -60.82" ; 2,241 fps/1,450 fpe
900yds: -90.65" ; 2,077 fps/1,246 fpe
1000yds: -128.97" ; 1,920 fps/1,064 fpe
Now that is FLAT! Not nearly as powerful in terms of FPE as the 366DGW, but plenty of flat. Savage Arms has looked at this round a year or so ago, in the aspect of making a proprietary (?) Savage round out of it. As of now it is still in the air.
This is my .270 B&B Mag:
130gr Nosler Ballistic Tip with 83gr (max load) IMR-7828 at muzzle = 3,863 fps/4,309 fpe
100yds: +3.10" ; 3,633 fps/3,811 fpe
200yds: +5.11" ; 3,410 fps/3,357 fpe
300yds: +4.22" ; 3,196 fps/2,949 fpe
400yds: 0.00" ; 2,989 fps/2,580 fpe
500yds: -7.95" ; 2,790 fps/2,248 fpe
600yds: -20.28" ; 2,598 fps/1,949 fpe
700yds: -37.60" ; 2,415 fps/1,684 fpe
800yds: -60.82" ; 2,241 fps/1,450 fpe
900yds: -90.65" ; 2,077 fps/1,246 fpe
1000yds: -128.97" ; 1,920 fps/1,064 fpe
Now that is FLAT! Not nearly as powerful in terms of FPE as the 366DGW, but plenty of flat. Savage Arms has looked at this round a year or so ago, in the aspect of making a proprietary (?) Savage round out of it. As of now it is still in the air.
07-17-2003, 05:53 PM
#15
Thread Starter
Join Date: May 2003
Location:
Posts: 198
RE: .366 D.G.W.
I think you will find your pressures are alittle on the high side. You might even be higher then the Remington Short Ultra nags, no that is not a mistake. Even so you run alot higher pressure then the .366 but it looks good. What length barrel are you running and what is it based on? Wildcats are alot of fun arn' t they, but James will never understand, will he? What is the trajectory if you sight in 2.35 inches high at 100 yards? I would be intrested in seeing this as several of my customers are into .270 diameter. You might try a different powder, IMR 7828 will jump your pressures in cold weather and I have found some other powders do just as well but do not have the variation of 7828. Sounds like a neat cartridge, and I am not a .277 fan. You might change that! By the way watch your bullet selection. Other then Barnes most .277 bullets are designed to expand at .270 Win velosity even the Weatherby is pushing bullet failure. You might think about Swift Bullets they hold up well.
Your Friend
Jud
By the way like little kids at school. YaYa My bullet hits harder then yours does!
Just kidding that .270 is an impressive round!!!
Your Friend
Jud
By the way like little kids at school. YaYa My bullet hits harder then yours does!
Just kidding that .270 is an impressive round!!!
07-18-2003, 08:42 PM
#17
Typical Buck
Join Date: Feb 2003
Location: Greensboro NC USA
Posts: 563
RE: .366 D.G.W.
Judson, I am using a Shilen 26" barrel. The case is a highly modified .300 Win Mag case. I designed a .257 B&B Mag case first and had such outstanding results with the .257 B&B Mag round (4,020 FPS with a 100gr Nosler Ballistic tip and 75gr IMR-4831), that I used the same design for the .270 B&B Mag round. It has the shoulder blown out to minimal body taper, shoved way forward, with a shrp shoulder angle, and a minimal neck length. When I got back to the shop I checked my file on the .270 B&B Mag round and the 81gr load of IMR-7828 was my accuracy load at 3,698 FPS. I changed the load that I had listed at 3,863 FPS was my max load of 83gr of IMR-7828.
When I was working loads for the .270 B&B Mag, back in 1989, I tried H870 but could not get above 3,700 FPS even with heavy loads. I also tried Re-22 and IMR 4831, but got pressure signs before I could get above 3,700 FPS. IMR-7828 gave the the highest velocities and at 1/2" groups, more than enough accuracy for hunting deer. At the time I had a bunch of 130gr .277 Nosler Ballistic tips on the shelf, so I started with working them. They shot so well, I stuck with them. Since this is mainly a long range bean field rifle, used only for deer here in NC, I have stuck with them. So far the 130gr Nosler Ball-tips have proven extremely effective on the deer here in NC. I have also taken a 372 pound black bear with this same load. The shot was about 90yds, the bullet did not past completely thru, but the bear dropped in it' s tracks.
As for the pressure jumps in cold weather with IMR 7828, I have not noticed any signs of excessive pressure in cold weather. I guess that is due to the fact that it does not get that could down here in NC. A cold day down here, late in the season around late December, temps can get down in the mid to pow 20' s at night. These loads were worked up in cold weather, in February and March, and they are not showing any signs. Brass life has been good, as I am still shooting the initial lot of brass I worked up back in 1989. Of the initial 100 cases I started with, I ended up with 88 after the fire forming. Over the years I either lost some cases, scraped some due to split necks, etc., as I am down to 64 cases now. I have never had a head separation, blown primer, or swelled primer pockets.
I have toyed with the idea of trying a couple of new powders, Barnes X bullets, and maybe the Swifts or LRB Technologies J36 bullets. But I hate to to start toying and messing around with a combination that works so well. It' s kind of like a, " if it ain' t broke, don' t fix it" type thing.
I try and post a picture of these case if I can in the near future.
When I was working loads for the .270 B&B Mag, back in 1989, I tried H870 but could not get above 3,700 FPS even with heavy loads. I also tried Re-22 and IMR 4831, but got pressure signs before I could get above 3,700 FPS. IMR-7828 gave the the highest velocities and at 1/2" groups, more than enough accuracy for hunting deer. At the time I had a bunch of 130gr .277 Nosler Ballistic tips on the shelf, so I started with working them. They shot so well, I stuck with them. Since this is mainly a long range bean field rifle, used only for deer here in NC, I have stuck with them. So far the 130gr Nosler Ball-tips have proven extremely effective on the deer here in NC. I have also taken a 372 pound black bear with this same load. The shot was about 90yds, the bullet did not past completely thru, but the bear dropped in it' s tracks.
As for the pressure jumps in cold weather with IMR 7828, I have not noticed any signs of excessive pressure in cold weather. I guess that is due to the fact that it does not get that could down here in NC. A cold day down here, late in the season around late December, temps can get down in the mid to pow 20' s at night. These loads were worked up in cold weather, in February and March, and they are not showing any signs. Brass life has been good, as I am still shooting the initial lot of brass I worked up back in 1989. Of the initial 100 cases I started with, I ended up with 88 after the fire forming. Over the years I either lost some cases, scraped some due to split necks, etc., as I am down to 64 cases now. I have never had a head separation, blown primer, or swelled primer pockets.
I have toyed with the idea of trying a couple of new powders, Barnes X bullets, and maybe the Swifts or LRB Technologies J36 bullets. But I hate to to start toying and messing around with a combination that works so well. It' s kind of like a, " if it ain' t broke, don' t fix it" type thing.
I try and post a picture of these case if I can in the near future.
07-19-2003, 06:30 PM
#18
Thread Starter
Join Date: May 2003
Location:
Posts: 198
RE: .366 D.G.W.
Thanks for the info. I am not a .277 fan but is because of yoyos up here who rave about the .270 Win being the best thing in the world since sliced bread. Acording to them nothing else is close. BUT we are not talking about the Winchester are we. If sighted in at 2.35" at 100 what is the trajectory? That is what the computer program gave for the .366 if I wanted a 6" point blank range with a 250 grain bullet. One of my customers had me build a 6.5/8mm Mag. really impressive but very, very bad for the meat hunter, real big mess. He shot a deer in the front shoulders and said the meat was blood shot up into the neck.
You must run into the same thing unless you use bullets such as Swift or Barnes.
A few questions, do you need forming dies and what do you use as a firing forming load? One more question. Is your father Willis Ball? If so PLEASE thank him for the excellant article he wrote about the .366 D.G.W. Give me a call, lets talk some time.
You must run into the same thing unless you use bullets such as Swift or Barnes.
A few questions, do you need forming dies and what do you use as a firing forming load? One more question. Is your father Willis Ball? If so PLEASE thank him for the excellant article he wrote about the .366 D.G.W. Give me a call, lets talk some time.
07-20-2003, 03:03 PM
#20
Thread Starter
Join Date: May 2003
Location:
Posts: 198
RE: .366 D.G.W.
Thank you Woodseys!!!
1. My .366 Dgw based on an Enfield action and L to R, .308 Win. .366DGW, and the .416 Rigby, All fine deer cartridges.
2..366 DGW The .416 Rigby and the .505 Gibbs
3. The .366DGW and its parent cartridge the .416 Rigby
4.Various loads for the .366 DGW L to R 250 grain Nosler Ballistic tip, the 270 grain Speer, Barnes 286 grain solid and the Swift 300 grain A Frame, this is what I used in Africa.
5. .308, 3006. .366, and Rigby
6. My rifle in Africa, this picture shows the brake rather will. Picture 7 shows another view of the rifle.
1. My .366 Dgw based on an Enfield action and L to R, .308 Win. .366DGW, and the .416 Rigby, All fine deer cartridges.
2..366 DGW The .416 Rigby and the .505 Gibbs
3. The .366DGW and its parent cartridge the .416 Rigby
4.Various loads for the .366 DGW L to R 250 grain Nosler Ballistic tip, the 270 grain Speer, Barnes 286 grain solid and the Swift 300 grain A Frame, this is what I used in Africa.
5. .308, 3006. .366, and Rigby
6. My rifle in Africa, this picture shows the brake rather will. Picture 7 shows another view of the rifle.