.300 WM reloading

[Danny Fireblade]

Does anyone load the .300 WM with 180gr accubonds? What’s your experiences and what have you found?
A bit of advice here may save a bit in powder as these WM sure take a lot of powder

I am looking for a start point and for what powders I can get locally to me, initially veering towards RS70 and whatever magnum primer I can get?

I understand the usual caveats and will be working whatever load up that I decide upon.

24” Tikka T3x super varmint is the gun that will be used.

Thanks all.

 

[Edinburgh Rifles]

N160
N165
RS70





RS76



RS80 (Bit slow but works at a push with longer barrel)

 

[Eric the Red]

If you're going RS I would concur on 76 being the better - but 70 is viable.

 

[Jagged77]

RS60 and 149gr Yew Tree is a potent combination. I note that Reload Swiss list bullet data from 123gr up to 185gr in this powder. For other loads I settled on N165 which should be readily available.

 

[paulbshooting]

Used 180 grn accubonds with N165, will try to find load notes when home. They shot well.

Currently developing a load for 300WM with N560 for Fox 180 grn so I can use in Scotland too if required as they insist on lead free.

 

[Trilby]

RS70, 200 gr hornady heads, 67.5gr with a bit of jump from memory need to check notes, but put 5 bullets through a hole smaller than a 5 pence piece.

 

[Rutland lad]

I shoot 180 grain Barnes TSX in my WM using RS62.
Less than 70 grains of powder produced this group of three - and I pulled the last one ..

 

[Danny Fireblade]

That’s much appreciated, thank you.

Looks like RS76 could be good if I can find a reliable supplier, and if not then I have a few other options.

Thanks everyone for your insights, always good to see the variation and how it’s never just the one answer that fits all.

 

[trickie]

Dauntsey has 4kg of R/S 62, if that helps.
There stock levels are frequently replenished, might be worth calling them

 

[Danny Fireblade]

I shoot 180 grain Barnes TSX in my WM using RS62.
Less than 70 grains of powder produced this group of three - and I pulled the last one ..View attachment 427822

What speeds were you getting? Thanks.

 

[Danny Fireblade]

Dauntsey has 4kg of R/S 62, if that helps.
There stock levels are frequently replenished, might be worth calling them

I will give them a call tomorrow if work allows.

 

[Zio65]

N160 x 71,6 and accubond 180 , no really speedly(905 ms ) but more precision on my Weatherby with 66 cm of barrell

 

[Danny Fireblade]

That’s more than fast enough. I use factory Nosler trophy grade and they are 2950fps.
What primer are you using with the N160?

 

[Zio65]

È più che sufficiente. Io uso le Nosler Trophy di fabbrica e arrivano a 2950 fps.
Quale primer usi con l'N160?

Federal LRM Gold Medal

 

[Danny Fireblade]

Thank you, exactly what I have managed to get hold of.

 

[Ronin]

RS62

 

[Rutland lad]

What speeds were you getting? Thanks.

I will tell you after the 19th when I can chrono them.

 

[A Guy Out West]

I have the same rifle in the same caliber. I have gotten great accuracy with H4831, H1000, and Ramshot Grand with that same bullet. You might check those burn rates with what you can source over there. My only complaint with the SV is that all loads must be seated to a COAL of 3.34” or they won’t fit in The magazine.

 

[Rutland lad]

I will tell you after the 19th when I can chrono them.

I can tell you now -

 

[Danny Fireblade]

Very nice, thank you, that’s appreciated