.366 D.G.W.
07-14-2003, 05:33 PM
#1
Thread Starter
Join Date: May 2003
Location:
Posts: 198
.366 D.G.W.
Any of you intrested in a cartridge that blows the Ultra stuff into the weeds, far flatter shooting and way more energy? If you are check this out!!!
250 grain bullet, 98 grains of IMR4350 = 3253 FPS and %875 FP energy.
100 yards = +2.35" velosity = 3046 Energy 5150
200 yards = +2.44" velosity = 2851 Energy 4512
300 yards = -1.74" velosity = 2664 Energy 3991
400 yards = -10.8" velosity = 2486 Energy 3430
500 yards = -25.5" velosity = 2313 Energy 2971
Yep that is the .366 D.G.W. a direct neck down of the .416 Rigby cartridge and just about the ideal bore diameter for that case to get the best efficiancy. You should see the ballistics with the 286 and 300 grain bullets. Think of it the .366 has more energy at 300 yards then the 300 Ultra has at the muzzle. and is flatter shooting. If you compair the trajectory and balistics to the Ultra Mags big brothers, you will see they fall even further behind. In fact the only cartridge that holds up at all to the .366 is the .378 Weatherby and again the .366 is flatter shooting. Its velosity may be alittle slower but the ballistic coeficiant of the bullets makes up for this and as far as flat shooting the .366 beats the .378.
250 grain bullet, 98 grains of IMR4350 = 3253 FPS and %875 FP energy.
100 yards = +2.35" velosity = 3046 Energy 5150
200 yards = +2.44" velosity = 2851 Energy 4512
300 yards = -1.74" velosity = 2664 Energy 3991
400 yards = -10.8" velosity = 2486 Energy 3430
500 yards = -25.5" velosity = 2313 Energy 2971
Yep that is the .366 D.G.W. a direct neck down of the .416 Rigby cartridge and just about the ideal bore diameter for that case to get the best efficiancy. You should see the ballistics with the 286 and 300 grain bullets. Think of it the .366 has more energy at 300 yards then the 300 Ultra has at the muzzle. and is flatter shooting. If you compair the trajectory and balistics to the Ultra Mags big brothers, you will see they fall even further behind. In fact the only cartridge that holds up at all to the .366 is the .378 Weatherby and again the .366 is flatter shooting. Its velosity may be alittle slower but the ballistic coeficiant of the bullets makes up for this and as far as flat shooting the .366 beats the .378.
07-14-2003, 07:04 PM
#2
Join Date: Feb 2003
Location: Newport Maine USA
Posts: 389
RE: .366 D.G.W.
I promised Jud I would post these pics for him,and if I don' t I just hate to see a grown man cry 
Besides that hes bedding two of my rifles this week and I don' t want him overcharging me like these Maine gunsmiths do [:' (]Just kidding Jud [&:]
Besides that hes bedding two of my rifles this week and I don' t want him overcharging me like these Maine gunsmiths do [:' (]Just kidding Jud [&:]
07-14-2003, 07:57 PM
#3
Boone & Crockett
Join Date: Feb 2003
Location: Wall SD USA & Jamestown ND
Posts: 11,474
RE: .366 D.G.W.
You forgot to post the recoil numbers. I can,t think of a thing in the world I would use it for. I would never own a rifle that I absolutly could not buy ammo for. If a 378 Weatherby won,t kill it it don,t need killed. Nice toy for a rich boy I quess. I would never need a rifle that had more energk at upteen hundred yards that a 300 Mag does at the muzzle. Not do I need anything as powerful as a 300 Mag. Sorry
07-14-2003, 08:52 PM
#6
Typical Buck
Join Date: May 2003
Location:
Posts: 920
RE: .366 D.G.W.
As far as efficiency goes, the 366 DGW appears to do very well in that department. I too like to play around a bit with with cartridges that use mass quanities of powder. These are not as efficient but do have good ballistics.
30-378 WBY IMP
180gr Barnes X @3400 MV
100yds +2.3
200yds +2.6
300yds -.9
400yds -8.8
500yds -21.9
Does is shoot flat?
378 WBY
300 gr Barnes X @3000MV 5997 ft lbs
100yds +2.3 5330 ft lbs
200yds +1.8 4726 ft lbs
300yds -3.7 4176 ft lbs
400yds -15.1 3679 ft lbs
500yds -32.5 3229 ft lbs
416 WBY
400 gr Barnes X @ 2730MV 6477 ft lbs
100yds +2.3 5848 ft lbs
200yds +.6 5147 ft lbs
300yds -6.9 4515 ft lbs
400yds -21.4 3943 ft lbs
500yds -43.8 3431 ft lbs
All these numbers are moot if you cant hit where you are aiming. These big guns are not that easy to shoot accurately, especially in field situations. I would' nt hesitate on 300 yard shots with the last 2 alot further with the 30 cal. I think you' ll have to look hard to beat that 378WBY with a 300gr. Heck, out to 300 yards the 416 has good numbers, it will leave a bigger hole and penetrate very well, bullet drop is insignificant.
The .375 Barnes X has a BC of .555 and an SD of .305.
The .416 Barnes X has a BC of .546 and an SD of .330
The .308 Barnes X has a BC of .511
If I didnt already have the bases covered this 366 DGW shows merit.
yours in sport....AA
30-378 WBY IMP
180gr Barnes X @3400 MV
100yds +2.3
200yds +2.6
300yds -.9
400yds -8.8
500yds -21.9
Does is shoot flat?
378 WBY
300 gr Barnes X @3000MV 5997 ft lbs
100yds +2.3 5330 ft lbs
200yds +1.8 4726 ft lbs
300yds -3.7 4176 ft lbs
400yds -15.1 3679 ft lbs
500yds -32.5 3229 ft lbs
416 WBY
400 gr Barnes X @ 2730MV 6477 ft lbs
100yds +2.3 5848 ft lbs
200yds +.6 5147 ft lbs
300yds -6.9 4515 ft lbs
400yds -21.4 3943 ft lbs
500yds -43.8 3431 ft lbs
All these numbers are moot if you cant hit where you are aiming. These big guns are not that easy to shoot accurately, especially in field situations. I would' nt hesitate on 300 yard shots with the last 2 alot further with the 30 cal. I think you' ll have to look hard to beat that 378WBY with a 300gr. Heck, out to 300 yards the 416 has good numbers, it will leave a bigger hole and penetrate very well, bullet drop is insignificant.
The .375 Barnes X has a BC of .555 and an SD of .305.
The .416 Barnes X has a BC of .546 and an SD of .330
The .308 Barnes X has a BC of .511
If I didnt already have the bases covered this 366 DGW shows merit.
yours in sport....AA
07-14-2003, 09:11 PM
#7
Nontypical Buck
Join Date: Feb 2003
Location: Pulaskiville
Posts: 3,533
RE: .366 D.G.W.
Beautiful gun...But for kicks, I' ll stick to my .308 Norma Mag....shooting 180' s faster than you can imagine.....................................LOL: D
I have 2 guns now that I can' t find brass for............what would I want another for? LOL
: DI have 2 guns now that I can' t find brass for............what would I want another for? LOL
07-14-2003, 09:26 PM
#8
Typical Buck
Join Date: May 2003
Location:
Posts: 920
RE: .366 D.G.W.
Pro-line, The last 308 Norma Mag brass I purchased was from Cabela' s I think. You might want to check them out, there prices are very competitive nowdays. As far as finding 416 Rigby brass, Norma has been doing good with that now, there was a time when it was very hard to come by. I do like the Federal factory stuff too.
AA
AA
07-15-2003, 04:11 PM
#10
Thread Starter
Join Date: May 2003
Location:
Posts: 198
RE: .366 D.G.W.
Recoil on the .366 D.G.W. in a 10 1/2 lb rifle is in the 50+ foot pound range, alittle less then the .416 Rigby. Not the chambering you want in a 7 pound rifle. With the brake design I used on my rifle recoil is more like a 300 Winchester but the recoil is slower and there is no muzzle jump even when shooting off the bench.
In the near future we hope to have the cartridge picked up by one of the factories as it is in Cartridges of The World, (tenth eddition) And the Safari Club International just did a feature article about it. If and when it gets comercialized all you non loaders can get ammo which if not into reloading is a real big handicap.
True it is not a cartridge for everyone, neither is a custom car, or for that matter anything offering ultimate performance. Things like the .366 only appeal to those that know the difference. To quote Mr. Walter Enslin, a professional hunter in South Africa and ranked as #4 in S.A. in their competive shooting circle.
" The combination of velosity and bullet weight of the .366 D.G.W. seemed more ideal then anything I have seen before."
Sorry James, this is somthing you will not understand!
In the near future we hope to have the cartridge picked up by one of the factories as it is in Cartridges of The World, (tenth eddition) And the Safari Club International just did a feature article about it. If and when it gets comercialized all you non loaders can get ammo which if not into reloading is a real big handicap.
True it is not a cartridge for everyone, neither is a custom car, or for that matter anything offering ultimate performance. Things like the .366 only appeal to those that know the difference. To quote Mr. Walter Enslin, a professional hunter in South Africa and ranked as #4 in S.A. in their competive shooting circle.
" The combination of velosity and bullet weight of the .366 D.G.W. seemed more ideal then anything I have seen before."
Sorry James, this is somthing you will not understand!