What Kind of FPS out of a 20" 300 WIN MAG?

[IanHusaberg]

Just like the title states. I have a 20" 300 winchester magnum in a Barrett MRAD. I'm looking into buying some Reloading dies and Brass. I have the barrel for sale in the PX. What kind of FPS can I expect with 230 hybrids or 208 eld-m with H1000, Norma brass, Federal 215m primers? I also have IMR 4064, RL17,15. I saw people use RL22,26,25?

Thanks, IanHusaberg

 

[wxl]

Do not have data for 178 ELDX but for 175s and H1000 you should be able to reach 2900 fps. Probably ~3000fps with IMR 4831 and 4350

 

[DetroitRearView]

I have a 21" 300 WM and get 2810 with 190's FGMM factory. Will load for it as soon as I am through this case, with the 230's you most are most likely looking somewhere in 2700 or less.

 

[GhengisAhn175]

Do not use h1000 or slower.

go for 4831 (Hodgdon or IMR) .

Varget/4064 might be too fast but that's going off the top of my head.

 

[IanHusaberg]

Thanks. Not sure i'm going to load for it, but thinking about it. Maybe I should consider the 185 juggernauts with this short barrel if I decide to shoot it.

 

[MtnCreek]

IMHO, the only reason to go lighter bullet / faster powder would be reduced muzzle flash. Otherwise, heavy / high BC bullets and powders in the H4831 / H1000 burn rate are going to deliver best performance at extended range.

 

[Silverjay]

I run a 22" barrel with 208 Amax at 2875 using 4831. Could go up some, but shoots really good.

 

[Ajwillly]

I am running a 28 inch 10 twist 208gr ELD 76gr of H1000 and I had an average of 2919 ft./s in 35deg weather. I would agree with the gentleman above somewhere around 2700 ft./s. You also might try 4000-mr it had promising velocities but was burning too fast for my barrel.