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Joined: Oct 2005
Posts: 13,065
Campfire Outfitter
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OP
Campfire Outfitter
Joined: Oct 2005
Posts: 13,065 |
Anybody out there ever load the 220 gr Hornady RN in 308 ? I know the arguments against , but anybody done it just for giggles ? Anybody got a starting load ?
Always talk to the old guys , they know stuff.
Jerry Miculek
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Joined: Jun 2005
Posts: 12,434 Likes: 5
Campfire Outfitter
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Campfire Outfitter
Joined: Jun 2005
Posts: 12,434 Likes: 5 |
I have. I used W-760 with the 220 gr. Sierra round nose. If you get one of those "One Book/One Caliber" loading books, there's a whole bunch of data to load 220s in the .308.
TYhe Winchester data gave a starting load of 42.0 gr. of W-760 for 2177 FPS at 42,000 C.U.P. for pressure. The max load was 44.0 gr. of W-760 for 2295 FPS at 46.900 C.U.P. That max load clocked at 2310 FPS from my Pre-64 Winchester M-70 Featherweight and from a Winchester M70 Youth Ranger that's been restocked with a Ramline stock. Both rifles have a 1 in 12" twist rate in the barrel. If your rilfe has a 1 in 10" twist, then be sure to work up from the starting load. I haven't had a chance to gtry the Hornady bullet yet as it seems some of the local shops don't seem to want to carry the bullet. I had to find the Sierras at a gun show.
This brings up an interesting point. For quite a few years after the 30-06 came out, people considered the 30-40 Krag as being the better round for elk. Seems like the 220 gr. bullets of the day were not strong enough to hold up under 30-06 velocity. I forget who wrote that, but I think it was John Wooters. This made me think. If the 30-40 Krag was good for elk at 2,000 FPS, surely the .308 Win. could do better than that. Well, it can. Not only that, but the load was very accurate. FWIW, that 2,300 FPS is only 100 FPS slower than the 30-06's advertised velocity. Of course, I know you can beat that speed in the 06 with careful handloading, but it is something to think about. Might even be interesting to chronograph some 220 gr. 06 loads and see where they stand against that .308 handload.
Anyway, that One Book/One Load will have data for the 220 gr. bullets from just about everybocy in the business. The sad news is the Hornady data in that book excludes their 220 gr. bullet. Hope this helps.
Paul B.
Our forefathers did not politely protest the British.They did not vote them out of office, nor did they impeach the king,march on the capitol or ask permission for their rights. ----------------They just shot them.
MOLON LABE
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Joined: Oct 2005
Posts: 13,065
Campfire Outfitter
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OP
Campfire Outfitter
Joined: Oct 2005
Posts: 13,065 |
Thanks PJ , try as I might I could not find any info for this bullet weight in the 308 all my sources of data dried up after 200 grs. Funny how Hornady lists data for the 220 in the Krag & the Russian , but not the 308.
Always talk to the old guys , they know stuff.
Jerry Miculek
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Joined: Jun 2001
Posts: 536
Campfire Regular
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Campfire Regular
Joined: Jun 2001
Posts: 536 |
I'm sure that the 220 will be fine in most 308's. The odd one may not stabilize it well, but I believe that most will. FWIW, the 30-06 will make 2550 with the 220 in a 24" barrel with Norma MRP, Reloder 22 or Vihtavuori N-165. But most factory loads I have chronographed will not make 2400. Regards, Eagleye.
Artificial Intelligence is no match for Natural Stupidity.
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Joined: Sep 2001
Posts: 19,132 Likes: 11
Campfire Ranger
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Campfire Ranger
Joined: Sep 2001
Posts: 19,132 Likes: 11 |
I load 210gr Bergers to over 2500 fps in my .308 via RL15 and a 26" barrel. W760 and Ramshot Hunter look like good powders to maximize velocity with the 220grRN. Here's a quickload powder list. These would be max loads, so back off and work up safely.
Cartridge : .308 Win.
Bullet : .308, 220, Hornady RN 3090
Cartridge O.A.L. L6: 2.800 inch or 71.12 mm
Barrel Length : 24.0 inch or 609.6 mm
Powder type Filling/Loading Ratio Charge Charge Vel. Prop.Burnt P max P muzz B_Time
% Grains Gramm fps % psi psi ms
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Ramshot Hunter 103.5 49.7 3.22 2533 99.6 62000 9222 1.253
Winchester 760 101.0 48.0 3.11 2523 99.2 62000 9147 1.259
Vihtavuori N550 101.0 47.5 3.08 2515 100.0 62000 8910 1.268
IMR 4350 105.0 46.8 3.03 2503 99.4 61117 8903 1.263
Accurate XMR 4350 105.0 47.3 3.07 2499 100.0 60722 8710 1.287
Ramshot BigGame 101.7 46.1 2.99 2495 100.0 62000 8404 1.265
SNPE Vectan SP 11 99.2 46.2 2.99 2494 100.0 62000 8394 1.265
Hodgdon H380 102.2 47.6 3.08 2480 98.5 62000 8908 1.276
ADI AR 2209 105.0 48.6 3.15 2474 97.3 58657 9181 1.278
IMR 4895 96.5 42.6 2.76 2472 100.0 62000 7766 1.255
Alliant Reloder-15 96.3 43.4 2.81 2471 100.0 62000 8200 1.279
Raufoss RA11 96.3 43.4 2.81 2471 100.0 62000 8200 1.279
SNPE Vectan Sp 7 96.1 46.4 3.01 2470 100.0 62000 8213 1.277
Norma 203B 96.8 43.6 2.83 2469 100.0 62000 8143 1.280
Norma 204 105.0 48.4 3.13 2465 97.3 59235 9011 1.280
Rottweil R903 101.7 44.8 2.91 2465 100.0 62000 8061 1.289
Norma 203 old 101.6 44.8 2.90 2464 100.0 62000 8050 1.289
Hodgdon H414 97.1 47.1 3.05 2462 97.0 62000 8845 1.277
IMR 4320 95.1 43.6 2.82 2453 100.0 62000 7894 1.266
Somchem S365 105.0 47.1 3.05 2447 100.0 53461 8370 1.332
Hodgdon H4350 105.0 47.9 3.10 2446 96.5 58568 8919 1.286
Rottweil R907 96.3 45.3 2.94 2444 98.7 62000 8462 1.282
ADI AR 2208 95.1 43.1 2.79 2436 100.0 62000 7917 1.274
Vihtavuori N150 100.7 44.9 2.91 2432 100.0 62000 7428 1.283
Accurate XMR 4064 99.1 43.2 2.80 2428 100.0 62000 7482 1.314
IMR 4064 96.1 42.4 2.75 2426 100.0 62000 7711 1.280
IMR 4831 105.0 47.2 3.06 2419 99.6 54519 8593 1.340
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Joined: Feb 2001
Posts: 2,499
Campfire Regular
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Campfire Regular
Joined: Feb 2001
Posts: 2,499 |
The 220 grainer should work with the .308, but keep in mind that it won't be a long-range shooter with it. But it will provide the biggest punch from your .308 at closer range.
Not to take anything from such a great little caliber (the .308), there is a nice article about it's bigger brother, the ".338 Federal" August 2006 issue of the NRA's "American Hunter" magazine.
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Joined: Sep 2001
Posts: 19,132 Likes: 11
Campfire Ranger
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Campfire Ranger
Joined: Sep 2001
Posts: 19,132 Likes: 11 |
A 220 grain roundnose at 2500 fps can be pretty flat shooting, and deliver a ton of thump, to 200 yards.
Tabular trajectory data at Non-Std. Atmosphere
Gunsite altitude : 4000 ft.
Air density : 0.068737 lb./ft�
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Gun / Ammunition : .308 Win.
Bullet : .308, 220, Hornady RN 3090
Bullet weight : 220 grains or 14.26 Grams
Muzzle velocity : 2524 fps
Crosswind speed : 10 Mph
Ballistic Coefficient(s) (G1):
C1=0.300@V>0 fps;
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Range Velo Time of Energy Path Deflection Total Sight correction Target
city flight to at crosswind drop for setting new lead
LOS of 10.0 Mph zero range 33 fps
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�Yards fps s ft.lbs. in. in. MOA in. Clicks MOA yds �
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| 0 2524 0.0000 3113 -1.8 0.0 ----- 0.0 ------ ----- 0.00
| 25 2459 0.0299 2955 -0.1 0.0 0.12 0.2 +1.4 +0.48 0.33
| 50 2396 0.0605 2804 +1.1 0.2 0.36 0.7 -6.4 -2.19 0.66
| 75 2333 0.0922 2659 +2.0 0.5 0.68 1.6 -7.5 -2.59 1.01
| 100 2271 0.1249 2520 +2.5 1.1 1.01 2.9 -7.0 -2.41 1.37
M 116 2232 0.1463 2434 +2.6 1.5 1.22 4.0 -6.3 -2.15 1.60
| 125 2210 0.1585 2387 +2.6 1.7 1.33 4.6 -5.7 -1.97 1.73
| 150 2150 0.1931 2259 +2.2 2.6 1.65 6.8 -4.1 -1.40 2.11
| 175 2091 0.2285 2137 +1.3 3.6 1.97 9.5 -2.1 -0.73 2.50
X 200 2033 0.2648 2019 0.0 4.8 2.27 12.6 0.0 0.00 2.90
| 225 1975 0.3019 1907 -1.8 6.1 2.57 16.2 +2.3 +0.78 3.30
P 238 1946 0.3213 1851 -3.0 6.8 2.71 18.3 +3.5 +1.19 3.51
| 250 1919 0.3397 1799 -4.2 7.5 2.86 20.4 +4.6 +1.59 3.71
| 275 1863 0.3791 1697 -7.1 9.2 3.19 25.1 +7.2 +2.48 4.15
| 300 1809 0.4202 1599 -10.8 11.2 3.56 30.6 +10.0 +3.44 4.60
-------------------------------------------------------------------------------------
M = Peak vs. L.O.S, X = Set Zero, P = Max. Point Blank Range
Elevation above Angle of Site (0.0 deg.) = 0.1143 deg.
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Joined: Jun 2001
Posts: 19,113 Likes: 6
Campfire Ranger
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Campfire Ranger
Joined: Jun 2001
Posts: 19,113 Likes: 6 |
I messed around with them for my Model 88. It just took too much powder space to fit the rounds into the box mag. However the 220 gr Rn in my .06 is an elk killer
If God wanted you to walk and carry things on your back, He would not have invented stirrups and pack saddles
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Campfire Regular
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Campfire Regular
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"I do not hunt turkeys becuse I want to, but I am helpless in the grip of my compulsion." I love my wife:)
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Joined: Jan 2001
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Campfire Ranger
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Campfire Ranger
Joined: Jan 2001
Posts: 21,317 |
In my Ruger ultralight I loaded 220 Sierra rn's over RL 15, VV N-550 and H-4350, and worked up to 2150 fps from the 20" tube, and got nice moa triangular groups.
I couldn't see any benefit of that load vs good 180's @ 2600 for hunting use. But since that 308 was the first rifle I ever loaded for, I had to try alot of different combos.
I'd have to dig out my notes for the loads I used, it's been quite a few years.
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