Increasing 308 speed

[deerslayer512]

I hand load .308 rounds and i want to know the best powder to increase the speed of a 230 grain hard cast bullet

 

[sloughfoot]

From what speed? To what speed? What powder, and how much, are you using now? Paper patched?

I am sure there are more questions I could ask.

Welcome to the forum, but come on.......

 

[avboiler11]

Shooting cast from a 308?!?

 

[sloughfoot]

I shoot 190 grain lead bullets out of 30-30, .308, and 30.06. I use 16 grains of #2400. It is great fun and cheap to shoot.

 

[shibumiseeker]

Shooting cast from a 308?!?

Yep. Cheap shooting. Bolt guns are a lot of fun like that.

I'm running gas checked 230s at 1900fps give or take. Getting 2moa at 100 yards, but the bullet drop is more than my 168gr SMKs at 300 yards. These are the same boolits I am running in my 300blk.

 

[Yeah]

The best way to Improve a 308 Win is to neck it down. Powder can't get you there.

 

[sloughfoot]

The best way to Improve a 308 Win is to neck it down. Powder can't get you there.

You didn't read the OP. I agree with you, but not with 230 grain lead bullets.

 

[deerslayer512]

Sorry what i should have said was "what is the best load for getting the maximum velocity out of a 308 with a 230 grain hard cast bullet"

 

[parson]

Here's a thread that offers opinions-

Jacketed Velocity with Cast Bullets?

 

[Broom_jm]

Sorry what i should have said was "what is the best load for getting the maximum velocity out of a 308 with a 230 grain hard cast bullet"

You seem to be missing the point of shooting a heavy-for-caliber hard cast bullet. Trying to achieve maximum velocity should not be your goal. If you want maximum velocity from a 308, drop way down in bullet weight and then use a medium burn rate powder.

There is no "best load" for what you're asking. Find published data, work your way up until you get suitable accuracy.

 

[Woobie]

I started a thread on alliant pp 2000 mr, wondering if there was any experirience with it. Alliant makes some pretty impressive claims regarding velocity. However, from what (limited) information I've seen, it's not intended for that heavy of a bullet. Alliant has sample loads on their site, and there are no loads with a bullet heavier than 185. If you're married to that 230 gn bullet weight, I would just try some diffeent powders and work up watching (closely) for pressure signs. To me, the .308 isn't the most efficient case for a bullet that heavy, but that's the great thing about this hobby: it's your gear, and the only person that has to approve is you.