338 win mag sst 225 gr loads

[bigdaddyWSM]

I just bought a browning xbolt carbon fiber 338 wm with a vortex viper 4-16-50 viper HS for cheap & was looking to make a mid range shooter out of it. I shot some 225 sst superformance ammo today for 1.7 group. Any tips on good accuracy loads with imr 4350 & 225 bullets?

 

[FEENIX]

I just bought a browning xbolt carbon fiber 338 wm with a vortex viper 4-16-50 viper HS for cheap & was looking to make a mid range shooter out of it. I shot some 225 sst superformance ammo today for 1.7 group. Any tips on good accuracy loads with imr 4350 & 225 bullets?

Welcome to LRH and enjoy!

My Hornady 9th ed recommends IMR 4350 starting at ...

57.2gr (2300 FPS)
59.5gr (2400 FPS)
61.8gr (2500 FPS)
64.1gr (2600 FPS)
66.3gr (2700 FPS)
68.6gr (2800 FPS)

... using WLRM and Frontier brass (24" 1:10"). Each load is different from one rifle to the next, so you just did need to find the best combination that best works for your specific rifle and intended use.

Good luck!

Ed

 

[bigdaddyWSM]

Thank you, I made a few 7mm loads last night & will try a few different 338 today. My search on tablet must not work on this site because I did search first. My hornady manual has sp but not sst. Once again thanks for the info.

 

[FEENIX]

Thank you, I made a few 7mm loads last night & will try a few different 338 today. My search on tablet must not work on this site because I did search first. My hornady manual has sp but not sst. Once again thanks for the info.

If you do a custom query on the the top right hand corner by entering "338 win mag sst 225 gr loads", you'll yield 53 results for your consideration.

Cheers!

Ed

 

[bigdaddyWSM]

If you do a custom query on the the top right hand corner by entering "338 win mag sst 225 gr loads", you'll yield 53 results for your consideration.

Cheers!

Ed

I tried that & my tablet wouldn't do it for some reason, have no computer at home. Thanks anyway.

 

[Gene R.]

I run RE19 in both my 338win mags with great success. I specifically use 225sst & RE19 @ 78 grs compressed in my Savage 116. 250 gr sierras @ 73gr.

Gene

 

[tbrice23]

I had good luck with Reloder19 also. I mostly shot 215gr SGK

 

[86alaskan]

or if you can 7828ssc works great as well. allows excellent case fill due to the super short cut. load 74.5gr under a 250gr hornady for my brown bear loads

 

[tbrice23]

or if you can 7828ssc works great as well. allows excellent case fill due to the super short cut. load 74.5gr under a 250gr hornady for my brown bear loads

I love 7828. I wish I had tried some when I still had the barrel. (Its a 7mag now)

 

[Hotolds442]

At 58° yesterday, my 116 was shooting 71.5gr IMR-4350 in Nosler brass with CCI-250's and the SST at 2833fps. The 225 SST Hornaday Superformance factory loads were clocked at 2805 during the same session. 77gr of IMR7828 yielded 2778. Accuracy with either load was not acceptable. The 225 Accubond shot far better groups for me, but I started on a clean bore and as it collected copper, groups gradually tightened up.
Hodgdon shows the 225's at a maximum of 72gr IMR-4350 for 2832fps.

 

[257Tony]

My pet load with rl19 yields right at 3000 fps with 225 SST out of my 26" browning. Right around 1" groups, plenty good for a 500 yard elk gun. Hits hard!!

 

[Bravo 4]

My pet load with rl19 yields right at 3000 fps with 225 SST out of my 26" browning. Right around 1" groups, plenty good for a 500 yard elk gun. Hits hard!!

He has a point about the elk load. With .338 SST A buddy of mine double lunged several whitetail bucks from 200 to a little over 500 yards, and was not impressed. It killed, but the terminal performance wasn't what he expected from a "ballistic tip" type bullet, especially when started at 3250 fps. I tried some at around the same muzzle velocity on a buck at around 200 yards last season. Double lunged he ran about 100 yards, stood for several seconds and laid down. From what I can tell the larger caliber SST is more heavily constructed than it's smaller counterparts. Not quite the violent terminal performance on deer I've got with 7mm and .308. I won't be using them on deer anymore (unless I shoot for shoulder), however I think that out of your .338 WM it will be great on penetrating elk.