300 Weatherby - 200 grain Accubond Loads

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25 December 2018, 06:23

BighornBreath

300 Weatherby - 200 grain Accubond Loads

Will be shot out of a 24" Vanguard. What are some good powders to start with and what kind of speed are you getting? Thanks in advance!

25 December 2018, 18:08

snowman

IMR 7828 would be a good place to start. I would be more concerned about the groups it will shoot than the speed

25 December 2018, 18:36

youngoutdoors

Reloader 22 or 25 works well in the 300 Wby too.

God Bless, Louis

25 December 2018, 19:57

ddsipe

I don't have any experience with the 300 Wby, but do with 300 Win Mag. I would think that H1000 and Retumbo would also be good choices. H1000 works great in the 300 Win Mag with 180gr bullets.

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25 December 2018, 21:43

Samuel_Hoggson

2950-2975 from two 24" 700s in .300 Roy. About 1" to 1.25" for 5 at 100 yds, consistent. Remington cases, WLRM, IMR 7828. 200 gr Partitions, instead of Accubonds b/c the only BT bullets that shoot well in any of our 3 .300 Roys have been monometal TTSX. They shoot great, BTW.

Tried faster burn rates (IMR 4350, IMR 4831, new H4831) but end up burning more powder to have a .300 Win.

26 December 2018, 03:29

BighornBreath

Great, thanks for the info!

27 December 2018, 06:08

Magnum Hunter1

IMR-7828 is my go to powder for the 300 Wby. but my last Speer 200 grain loads were with H-870 to the tune of 93 grains. That gave me 2978 fps out of my 26" barrel Mark V. 1" groups at 100.