Favorite powder for 300 win?

[Robert M Boren Sr]

I use Ramshot Magnum for our 7mm mag, 300 mag, 338 rum, with excellent results, temp stable, and meters extremely well.

 

[jshepherd61]

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]

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.

 

[bernerd257]

I moved to the IMR 4955, but 165 TTSX, getting 3290 fps. May work for the 180's.

 

[Pappabear]

Note to 300WM shooters, keep 16 lbs of H1K on hand 24/7. Just saying its a good idea.

PB

 

[bowhunter123456789]

With 180 gr bullets I always found that IMR 7828 was the ticket, that is till I tried RL-26. Great accuracy and gained about 85 ft/sec. Only problem is to find some.

Many Cabela's stores have RL 26 in stock. I scored 3 lbs in the NY store , yesterday.

 

[bowhunter123456789]

H4831SC, H1000, IMR 7828SSC

plus RL26

 

[Holierhoek]

180r bullet rl22 75.5gr will do just fine

 

[FEENIX]

plus RL26

Have a couple 1 pounders but have yet to try.

 

[RCHunter]

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!

 

[screate]

+ H1000 or 7828ssc

 

[Asco6]

+1 RL 26
Weatherby performance out of a win mag case.

180 ab's at 3130 out of my factory tikka. Limbsaver suggested

 

[Wendell]

Looking to shoot 180 grain pills out of 28" barrel.
Was going to see what the consensus was.

Look up nosler 180gr it gives the powder charges but I h1000 or IMR4350 get more speed out of h1000 and good groups

 

[BrianID]

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