338-06: 215 Sierra, 55.6 gr. of VV N140. WLR 3.33" OAL. Shoots like a varmint load.

35 Whelen 250 Speer, 57.4 VV N-140. 3.35" OAL WLR. Just shot 4 X 5 shot groups at 200 yards Largest was 1 1/4" Should be a big game hammer

Both loads are moderate and the best I have found for either rifle. Enjoy

IMR 4320 is the powder

that is all I ever shot, 414 was not a winner in my rifle, slow speeds,

4320 all the way both speed and accuracy

For velocity and Accuracy, I got with H 380, a lot more velocity and accuracy was highly superior to 4320.... and that from a die hard IMR fan, as I prefer their powders 10 ways to Sunday over Hodgdon normally!

cheers
seafire

I have been working up loads for my .338-06, wasn't getting good groups with IMR 4064 or H414 with the 210 Nosler. I just tried the Ramshot Big Game, which is what I use in the 9.3x62 and got two consecutive sub- MOA groups. This rifle was struggling to stay under 2 in. with the other two powders, I also have some 210 TSX's to try tomorrow. For some reason I don't have a can of 4320, probably the only thing I don't have.

js, I bought some powder -RL15 for my .338-06 There is an avid reloader over on the Alaska Shooting Forum goes by the username of Murphy. Been reloading commercially here in the state for many many yrs-says RL15 is the preferred overall choice. Might give that a try. Like most have posted though ever rifle is like, very different. Guess that what makes reloading such a kick(pun intended).

grizz

I have a bunch of RL15, as i load it in my .375 H&H, but haven't tried it yet.

I was working up a good load using H380 and the 210 TSX haven't finished yet but 59 gr seem to be what my rifle likes.Chrono'd at 2775. I'm trying some different primer next.
Rob

I think I cured my .338-06 load problem. Just shot it again today, 5 straight 3- shot groups, the largest 1.2, smallest .670. This was with Big Game and the 210 partition and the velocity was 2790 at 12 ft., so it will be 2800 at the muzzle. the velocity only varied 6 fps on all the shots. I may have to try it in the .375, since it works so well in .338-06 and 9.3x62.

The observations documented here pretty much mirror my experience with the .338-06 and both IMR 4064 and H 414. I finally did get 55 grains of IMR 4064 to work with 200 grain Hornady interlocks. Shoots sub MOA but when I went to the Nosler partition 210 grain. It shoots in the 2 MOA range. I really wanted to use the Nosler but it shot horrible. I'm glad I read this thread. I'm going to give IMR 4320 or RL15 a try as soon as I can find some. Regards.

Migra

How much of which powder are you guys using?

If I were to start with either RL 15 or IMR4320 the starting load would be around 52 gr the work up at 1/2 gr. at a time. 53.5 of 4320 was accurate for me at 2650. You also may want to try Varget very close to the other two powders.

As a final chapter to my poor shooting .338-06, I dropped the Big Game charge a grain and loaded some 210 TSX's and promptly fired two three shot groups under .450. After five three shot groups, I have none over .8 with this load and it goes 2800 fps on the nose. I am loading 62 grains of Big Game with the 210 TSX in a 24 in. barreled FN Mauser. It seems like a lot of people don't have much luck getting the 210 NP to shoot in this cartridge.

I finally got my hands on some IMR 4320. I tried everything I could with the Nosler 210s. As usual, it shot patterns not groups (4"-6"). I got so frustrated I tried my old 200 grain Hornady load and it still shoots. I then tried some 225 grain Sierras with IMR 4320. These showed a lot more promise than they had with IMR 4064 and H-414. I guess 4320 is going to work in this rifle but the 210 Noslers aren't. Too bad. From all reports, all you had to do was show the elk that "magic" bullet and they fell dead in their tracks. I guess I'll have to use some of the less lethal bullets in this rifle.

Migra

Try N-550 with the 210,it works!! Big Game worked very well with 225.

My 35 whelen AI. loves H380 and 225 bullets. .7" @ 100 yards. Had no trouble taking two white tails at 400 yards A year ago.

I've hunted brown bears a LOT, and i used my custom .338-06 for much of my hunting. After extensive testing of .338 bullets i settled on Speer 275 grain bullets at about 2,300 fps. If you happen to have some of these, they are a perfect match for DG in a .338-06. My prefered powder for this bullet is IMR 4350.

I can tell you, this bullet WILL break the biggest bears down and flatten them!!

DM

the first powder I tested in my 338-06 was H 380 with 250 grain spitzers and it produced ragged 1 holers at 100 yds. I didnt figure there was any need in looking any further..........

I use two powders in my 338-06 and 35 Whelen. RL 15 for 225 gr and under and H4350 for anything over 225 gr in either caliber.

Best loads are: 338-06 52 RL15 w/210 TSX and 58.5 H4350 w/250 A Frame both at 3.385; 35 Whelen 60 RL 15 w/225 TSX and 61 gr H4350 w/250 A Frame both at 3.30 due to 3.34 mag.

Could go more on the RL 15 w/338-06 but this load was most accurate.

Start lowere and work up.

Good thread, thanks for the loads people! I have been shooting factory Weatherby loads, but at 50 bux a box, I ain't buyin' no more! I got these 4 boxes @ 25 bucks each. At least I have brass!

Have to do a powder inventpry and make sure I have all these powders before I start whipping up a recipe.

Very good thread indeed. I am having built a 338-06AI on a Sako m75 Greywolf. A new PacNor #5 barrel to be fluted an d length of 24". Should be completed by early July. Have a Leupold VX 3 in Gunmetal grey waiting.

I was going to try RL15, and have 380, 414, Varget, RL 22, h1000, Retumbo, 4350, and some of the new Winchester Supreme 780. Planning on using 225 or 250gr Accubonds and maybe try the TTSX. I really like the performance of the Accubonds in my 300WM and 270WSM's

For brass I was told just to use 30-06 but I may try to get some Norma brass that is headstamped 338-06. What primers would be reccommended-I have Federal 210 and 215 in my supply.

Any of the large rifle primers are good. Fed 210 is fine I use CCI 200. I don't think a Mag primer is needed even with the ball powders.

35 whelen ai 2oo gr barnes trip shock 60 gr vv n 550 225 gr swift 59. gr n550 sub. min in my rifle the 225 have taken 3 alasken moose no traking needed

35whelen ai powder listing n550 is error corect powder is vihtavuori n540 very accurate and fast

Just returned from a Cow elk hunt in Colorado used the 338-06 with 200 gr Northforks and 55.5 gr of RL 15 this load shoots great in my rifle. Took a nice cow at 250 yds full penetration on a broad side shot.This is a MAX load in my rifle so work up to it slowly.

I've settled on 225 Accubonds, 62.5 grs N204, 26" barrel, vel.=2850 fps (Oehler 35 triple screen), CCI BR LR primers, 5 reloadings per case., over 4000 ft# energy, 0.7" 3-shot 100 yd group. Not bad for a 338-06 AI.

Win. Mod. 70 CRF 22" PacNor SuperMatch bbl., fully bedded, 3# trig pull & M8 3x scope. Weatherby brass, Nosler Partition 210's, GM210M & 53.5 RL15 avg velocity 2660fps......3shots in a clover-all touching @ 100yds

note; the same powder charge using the Sierra GameKings 215's produced the same POI...with the same COL

I chose not to use the Gamekings as a big game bullet but they do produce excellent accuracies

I can't speak to the 338, but I run 4064 in my Whelen with the same 250gr Speer as the OP and I get sub 1/2 MOA groups at 100yds...

I'm not pushing the velocity though, MVs right at 2400 with that load.

I'd like to know what he OP is getting for MVs on that N140...

Nosler accubond 225 grain bullets over 56.0 grains of 4320 in my 338-06 A.I. Shoots so well I find no need to look elsewhere. CCI LR primers for everything but the .223.

But I do have a 100 count box of Swift Sirocco II bullets in 210 grain and a fresh can of RL 15. When will I use them? Dunno...I like the 225 grain bullets so well I probably never will.