Thanks for everyones input, I'll let you know what happened. I called Hornady and asked them if they had done any loads for their Interbond, the tech told me they had maxed out at 71 grains of H4350. I thought this would probably be a close match for the Accubond so I started my loads at 68.5 grains and shot a 3/4 inch group with 4 out of 5 shots. The flyer was one tha I pulled low and knew it as soon as I shot. It still only made the group a 1 3/4 inch group.
I then went up half a grain to 69 grains. This opened my group to about 1 1/2 inches. I went up another half grain to 69.5 grains. My group went to around 3 inches. There was not a small group here that you could throw out any flyers at all.
I went back today with some more loads using 70 grains. Out of a 5 shot group, 4 were within an inch the 5th made it an 1 1/2 inches. 70.5 grains opened it up to over 2 incehes. After firing the last string I went back to a round loaded from the first batch of the day and it fired right in the middle of the group.
This rifle was cleaned between each different charge weight and allowed to cool. It has never been an accurate rifle. Factory Federal 250gr. Nosler Partitions would never stay closer than 3 inches. I do full length size only because I have friends that hunt with the same caliber and I know some day Murphy is going to cause them to forget their ammo.
I will have to check the accurate loads out to 2 and 300 yards but I think I have got a handle on things so far. Once again, thanks for your input and feel free to offer more.

Lefty, was at the range yesterday with one of my hunting partners who had just loaded up several 225 gr. Accubond rounds for his 338. He had one with WW brass and WLRM primer and 74 grains of H4350. I t was very accurate. I shot it a few shots also (6) and one ragged hole at 100 yards with 3 of em. His rifle is pretty sweet it is an Ed Brown custom with a Zeiss Diavari scope, so maybe that helped too.. the other load he had seemed to shoot just as well, it was the same except with 70 gr. of IMR 4350. it seemed to hit just a little higher at 200 yards as compared to the difference between 100 & 200 with the H4350--in other words if the IMR 4350 was 2" high at 100 and pretty close to slightly high at 200, then the H4350 would have been slightly low at 200 if 2" high at 100. He is pretty excited about the accubonds, I also had very good luck with their performance in my 300WSM with the 180 gr. Very good groups. Good Luck & good hunting--Don.

Thanks Fish, I looked at the 225 grain data in my Hodgdon manual and they list a max of 69.5 grains where Speer lists 75 grains. The Hodgdon is using a non boat-tail bullet where Speer is using a boat-tail. I know the surface contact in the barrel will increase pressure but I would not think it would be enough to use 5.5 grains of powder more. When I called Nosler, the tech told me to use the ballistic tip loads. I don't find a .338 225 grain ballistic anywhere.

Has anyone worked up any loads with the new .338 Accubond yet? I am looking for input using H4350 powder. thanks.

Sorry, Winchester Magnum. I don't usually think of much else when someone says .338. Although I do have a little room in my safe for something else.

I am shooting them in my .338x74K, about the same cap. as your winmag. H4350 & RL19 give 1moa groups in my #1. Don't use the Speer data w/ any other bullet. The Speer 225grBT has a very short bearing surface thus higher charge weights. Use the Nosler Part. data as a starting point & work up. I find I can swap NPs for NABs w/o pressure signs in any caliber I have used them in.

Thanks, I don't have a current Nosler manual. Could you tell me what the maximum amount of H4350 is used with the 225 Partition? Thanks.

Using ***IMR-4350*** I get 2825fps ave with 225 Accubonds with 71.0grs, long seated bullets, WW-Brass and Fed 215 Primers. It shoots 1/2 Minute (3 shots) or better in my 26" Sako M-75.
Shot my first Elk way out there with this load last year. My buddy tried the same load and shot a bughole at 100yds with the same load..........DJ

A .338 what??

.33 Poacher's Pet
.33 Winchester
.330 Dakota
.338 A-Square
.338 Galaxy
.338 Lapua Magnum
.338 Remington UM
.338 Scovill
.338 Titan
.338 Winchester
.338-06 A-Square
.338-50 Talbot
.338-223 Remington
.338-378 Weatherby
.340 Weatherby

Lefty, I'm not a 338 owner myself, but I had not heard of a 225 grain ballistic tip, I looked on the Nosler web site just a minute ago and there ain't one! Interesting the tech guy told you that when they don't have corresponding weights. My friend works his loads up pretty methodically, but this was only his third go around with the accubonds, he felt like he was dialed in and was going to make the loads I mentioned previously his benchmark for the accubond in that rifle. They sure shot good, I know he already had figured the best COL and headspacing etc.. He was pretty jazzed about the good performance of the AB's even before this weekend, but I think the good results this trip to the range sealed the deal.

yeah I had gone to the website too and can only think that he got confused about what bulet I was talking about.

lefty315

What Mike told you was when loading for Accubonds use ballistic tip or partition data. You are correct in that Nosler does not manufacture a 225 grain ballistic tip. However, Nosler does make a 225 grain Partitions in 338. Therefore use the 225 grain Partition data.

I have a load for the Accubonds using N160 so it doesn't answer your question. I just thought I'd pass on an interesting experience. My regular hunting load in 338 Win Mag was N160-74g, @ 2920 fps. Super accurate. Bullet is seated .010" off lands. When I got the Accubonds I found the bearing surface was slightly less but the ogive was much larger than the Partitions. Nosler advised the same load would apply. I pulled the bullets, resized the necks, same powder charge and everything, and seated the Accubonds .010" off the lands. Chronographed (Oehler 35P) 3000+fps!!! Scary! Lousy accuracy, like 3". Absolutely no physical signs of pressure with easy bolt lift, no ejector marks, etc., but the pressure had to be way up there.

When I started working with the load I slowed the bullets way down, everything the same except less powder and when I slowed the bullets down to 2855fps I got the best accuracy I've ever had out of this rifle, several successive 3 shot groups under .5".

Unfortunately Nosler doesn't show a loading w/ H4350. It does show 71.5gr IMR4350 under the 225gr bullet. Drop a couple grains & work back up.