338 win mag (US 869)

[Clemson575]

I have 5# of US 869 and Im been looking for a load with this powder. Im loading Barnes TSX 285gr Boattail and Hornady SST 225gr. Please Help Me

 

[benchracer]

You are barking up the wrong tree on this one. That powder is WAAAAAAAAAAY TOO SLOW to work in the .338 Win Mag, which does its best work with powders more appropriate to the 30-06.

Unless you are loading for a .50 BMG or a smaller chambering that is HUGELY overbore, US869 isn't going to work. It is just about the slowest powder in existence:

Burn Rate


Your best bet is to sell it to a .50 cal shooter or try to trade it for a couple pounds of H4350, H4831, or RL-19.

 

[Clemson575]

I also have Viht N160 would that be a good powder

 

[benchracer]

VV N160 is comparable to H4831, so it should work just fine. Reloading data can be found here:

Products - Lapua

 

[Clemson575]

Thank you that was a big help

 

[benchracer]

Glad I could help. Good luck with your load development!

 

[Clemson575]

I pick up some H380 will that be a good powder

 

[FEENIX]

I pick up some H380 will that be a good powder

Yes, for 22-250! Not my choice for .338 Win Mag. H4831SC is my go to powder my .270 AI, .300 Win Mag and .338 Win Mag.

By any chance do you own a reloading book? If not, it's an excellent investment.

 

[T3-OleMan]

For my Tikka 338WM H 4350 or the other two 4350s for any thing over 185 gr. as well as Hodgdon SUPERFORMANCE for 185 gr. Hornady GMXs.gun)
Good luck.

lightbulb.....on another subject the Orange Bowl is not going to be another 70 / 33 is it??? LOL

 

[TJAY]

Here is H380 data.


180 GR. NOS BT Hodgdon H380 .338" 3.340" 65.0 2886 44,200 CUP 72.5 3111 51,100 CUP
185 GR. BAR TSX Hodgdon H380 .338" 3.290" 65.8 2870 48,000 CUP 70.0 3007 52,800 CUP
200 GR. SPR SP Hodgdon H380 .338" 3.300" 62.0 2685 44,900 CUP 69.0 2921 52,800 CUP
210 GR. NOS PART Hodgdon H380 .338" 3.280" 59.0 2555 42,400 CUP 66.0 2797 53,000 CUP
225 GR. HDY SP Hodgdon H380 .338" 3.340" 58.0 2490 43,700 CUP 65.0 2708 52,600 CUP

 

[Clemson575]

Im loading RL22 70.0gr

 

[FEENIX]

Im loading RL22 70.0gr

Are you still trying to load for ...

Im loading Barnes TSX 285gr Boattail and Hornady SST 225gr. Please Help Me

? lightbulb

 

[alaska]

Us 869 good for 338 Lapua

Suggest Reloader 19 for 225 grain or Reloader 17 in 338 Win Mag

Reloader 22 for 250's or H4831

285 made for Lapua not 338 Win Mag

225 very good in 338 Win Mag

 

[Clark]

I have a couple 338WM rifles.
This is typical trip to the range with a 24" barrel:

250 gr Nosler Gold Partion, moly 69 gr H4350, 3.34"
2645 fps
2599
2645