Favorite powder for 300 win?

jshepherd61

Well-Known Member
Joined
Dec 28, 2015
Messages
192
Location
Parker
Looking to shoot 180 grain pills out of 28" barrel.
Was going to see what the consensus was.
I have two powders I go to on that load H1000 for accuracy and Retumbo for velocity. Have tried them all for many years except some of the new Enduron powders. I’m in Colorado so must have a non-temp sensitive powder. I shoot in climates and altitude from 90 F to -15 F and 4,500 ft to 11,000 ft. Found those two powders to be the most stable and consistent of all of them in those conditions
 

Tagnbagem

Member
Joined
Dec 9, 2017
Messages
14
Location
Oregon
I use 76gr. of RL26 with barnes 180 ttsx in Browning Long range 300 win mag. One with 1-8 and other 1-10 twist 26" bbls. The 1-10 runs about 3150 after break-in and 1-8 is running about the same and is still speeding up during break-in. Sighted in for 300 yds.
 

RCHunter

Member
Joined
Dec 25, 2018
Messages
11
Location
Rapid City, SD
Looks like you have plenty of responses to sort through. I have a 26" barrel and custom chamber with 0.200" of freebore. I opted for RL-26 to take advantage of the temperature insensitivity and anti-copper properties. I am launching a Nosler 180 Accubond at 3240 fps with a stout load that gives me 1/2 groups all day long at 100 yards. I used it in Africa last year and New Zealand this year with great success. Longest shot to date was a Vaal Rehbock at 397 yards. Keep in mind that RL-23 and RL-26 offer temp insensitivity that RL-22 doesn't! Good luck in your search for that perfect load!
 

BrianID

Well-Known Member
Joined
Feb 6, 2018
Messages
93
I also use H1000 in my 300 win. I use to use IMR 4350 but Switched to H1000 because I was noticing significant velocity difference and different temperature extremes
 

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