IMR 4451 in 338 Win ?

[Alaska]

I have used IMR 4350 for many years in my 338 Win with 225 A Frames.

I plan on giving IMR 4451 a try............anyone tried it with 338 Win and 225gr.

 

[Vince]

Not yet but I'm looking to try it with 185 and 210 grain bullets.


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[Divernhunter]

Just wondering. When you use IMR4350 with the 225gr A-Frames how many grains do you use and the FPS you get.
I used a great load last time we went to South Africa but found out it was +4grs over book max. But it gave no extraction problems and would put 5 shots into a very small hole at 100 yards. The max book load was slow for my rifle and RL22 did much better in speed and accuracy.

 

[Alaska]

71.0 of IMR 4350 with 225 A Frames in WW Brass with WLRM primers
I have a cronie but never put it on, used the load long before I bought it, and just stayed with it.
I kinda like the old saying speed is great but accuracy kills.

 

[Divernhunter]

That was my load also but it is 4grs over book max which showed 67grs and 2715FPS. With 71grs I got 2834FPS & SD9 with my Ruger M77 and with 67grs I only got 2617FPS and SD18. The 71grs shot 5 rounds into a cloverleaf group only using a sand bag at 100 yards.
I was concerned about being 4grs over the book. Have you had any problems with that load? I am headed back to Africa and would like to use it but do not want to blow up the rifle.

 

[Alaska]

Lord No......used this load for 20 years.
I am on my 3rd 338 Win and all 3 guns shot this well.
That A Frame is sure a good bonded bullet......very happy with it. I limit my shots on moose to 500 yards since the AFrames BC is not stellar.

Note: Real load data you have to go to Speer reloading manuals (No 7) in the 60's. Current load data from the 1970's to current is watered down.

 

[69gto]

The new Nosler manual shows 71.5g with 225g bullets. I was shooting 72g in mine giving 2880fps before switching to RL17.

 

[Divernhunter]

Hell I spent months working up new loads that were in the swift book. Now I think I will go back to my tried and proven 71grs of IMR4350.
I am headed back to South Africa in May for more PG and the 338 is one rifle I will take again.
Now I have to choose between a 257W using 120gr A-Frames or a 264win mag using 140gr A-Frames as my 2nd rifle. Hard to choose one or the other.
Last time I took a 30-06.

Thanks for the 338 info. I know I tried some data that worked well with 225gr Hornady bullets but got sticky bolt(really bad) & flattened primers when the powder load was used with the A-Frame bullets. That is what had me concerned about being +4grs with the 4350.

 

[Alaska]

Over the years I had several 257 WBY and a 264 win...........not to excited about the 264.
The quarter bore with 100gr X Barnes was a sure good med game rifle with light recoil......killed like lighting.

The only 3 bullets I shoot in my 338 Win has been 225 Nosler Part, 225 Speer GS and 225gr Swift A frames . Like others said Nosler shows 71.5 as max with 225gr Part.

The 225gr Hornady worked very well in 338-06.

 

[Partisan]

I have used it in the 338 Mag with 250gr Accubonds, 250gr Part, 200gr. AccuBond, and 210gr. Sciroccos. Good Accuracy although I didn't push it hard yet. Chronographing it, I find it's slightly slower that H4350 although the published data indicates it is faster. ???

 

[Alaska]

I have used it in the 338 Mag with 250gr Accubonds, 250gr Part, 200gr. AccuBond, and 210gr. Sciroccos. Good Accuracy although I didn't push it hard yet. Chronographing it, I find it's slightly slower that H4350 although the published data indicates it is faster. ???

Most of the time I disregard the Vel numbers in the current manuals.........they are usually higher than actual tested vel.

 

[Alaska]

How did your trip go in Africa ?

 

[Alaska]

Hell I spent months working up new loads that were in the swift book. Now I think I will go back to my tried and proven 71grs of IMR4350.
I am headed back to South Africa in May for more PG and the 338 is one rifle I will take again.
Now I have to choose between a 257W using 120gr A-Frames or a 264win mag using 140gr A-Frames as my 2nd rifle. Hard to choose one or the other.
Last time I took a 30-06.

Thanks for the 338 info. I know I tried some data that worked well with 225gr Hornady bullets but got sticky bolt(really bad) & flattened primers when the powder load was used with the A-Frame bullets. That is what had me concerned about being +4grs with the 4350.

Can go wrong with 71.0 of IMR 4350 with that 225 Swift AFrame in 338 WM……..good proven load.