Anyone shooting Win 748 with cast 308

[bluejay75]

Evening Gents,

Anyone shooting Win 748 with cast 308? I have the MP molds Hunter mold that’s dropping 160ish and gaschecked.

Was wondering if Win 748 is even worth trying to get to 2500 FPS or so.

[charlie b]

What is your barrel twist? Lubed or PC bullets?

My 10" twist barrel I have been able to get to 2100fps with lubed and good accuracy. With PC I have shot some at 2400fps with near MOA accuracy. Have not tried faster. If you have a slower twist you may be able to do better.

[Dieselhorses]

I use 748 in my 223 cast rounds and get good accuracy and around 2400 FPS. Never used 748 on 308 but depending on case volume sometimes I use Dacron filler with other powders.


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[bluejay75]

What is your barrel twist? Lubed or PC bullets?

My 10" twist barrel I have been able to get to 2100fps with lubed and good accuracy. With PC I have shot some at 2400fps with near MOA accuracy. Have not tried faster. If you have a slower twist you may be able to do better.

Savage 10 twist.

[bluejay75]

Suggest a starting charge please.

[Winger Ed.]

I'm a big 748 fan and its all I use for 150-ish j-words in my M1A.

I played around a little with it using the Lyman 170 RN I got for .30-30s.
I figured out pretty soon why Lyman doesn't even list 748 for cast .308s.

However; IMR 4198 and 3031 gave me very good results with the 170 RN in the M1A, .30-30, and even .30-06.
I never pumped it up over about 2,000 fps, but under that, I'm happy with 'em.

[Ford SD]

Evening Gents,

Anyone shooting Win 748 with cast 308? I have the MP molds Hunter mold that’s dropping 160ish and gaschecked.

Was wondering if Win 748 is even worth trying to get to 2500 FPS or so.


I have shot a cast of cast in the 308 both bolt and semi... i think W748 is a great powder for Jacketed

if you are looking for accuracy 2500 fps with cast and a 10 twist .. i do not think you can do it

Shot cast with 4895 4749 unique 4227 5744 and a few others

best load was with either old imr 4227 or 4749 where I have shot 100 rounds (100yds) in a day changing targets every so often and at the end of the day,
when you stack your targets all the bullet holes... including pulled shots/ called can be covered with a coffee cup lid

[Yodogsandman]

A full case of W760 gives about 2500 FPS in the 308 win using a 160 gr NOE.