WHATS A GOOD POWDER AND CHARGE FOR A GOOD POWDER CHARGE FOR CAST BULLET

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  • Last Post 05 November 2023
4895 posted this 04 November 2023

I'M USING 28 GR OF 4895 BEHIND A 180 GR BULLET FOR MY CAST BULLET TARGET SHOOTING AND WAS WONDERING WHAT YOU FELLAS USE

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leadhead2 posted this 04 November 2023

What Caliber and gun?

leadhead

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4895 posted this 04 November 2023

I FORGOT TO MENTION I'M SHOOTING  308 PRE 64

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smokyboom posted this 04 November 2023

I use federal gold medal 168gr 308's.

Or win 748, fed gm lr primer, and Sierra 168 bt's

Pick your poison, and may turn off your cap key?

-------- Andrew BPCR in 45-70, and 38-55

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RicinYakima posted this 04 November 2023

With H4894 I used 26 grains with the Lyman 311284, but found 16 grains of A2400 better. 

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Wm Cook posted this 04 November 2023

Really good question.  Thinking that bullet to bore fit is important to cast accuracy I would suggest a borerider design to flatten the learning curve just a bit.  Second up is to consider the short .304 case neck on the .308 case.  The case neck plus the jump to the freebore + whatever length the freebore is will put the bullet into the leade/lands.  You'd rather not have the gas check below the case neck.  That makes the borerider design a bit easier to start with.  

Sometimes looking at past history and match results can help.  Here's all the .308 Winchesters that were shot the 21, 22, 23 Nationals.  The sort is by 1) powder, 2) mold used.  Right now I'm working with IMR4227, 4198, RL10X.  Most often repeated is 4895, RL7.  5744 and I are taking a trial separation at this time.  Powder wise I don't think there's a fixed "go to" powder in my mind.  There's some flexibility there.  Bullet to bore fit seems to trump most everything as far as accuracy goes.  Almost universally the velocities are in the 1600 - 1750fps range.  So if you have a couple powders in mind, maybe whats already on your shelf, get the charge figured out for 1650, 1680 and 1710fps.  That narrows down the time to get a load dialed in. It looks like IMR4227 is pretty popular with borerider designs.

The Egan design's from Accurate like the 210E and the 230E are bore riders and you can have the mold cut to fit your bore.  Yep forgot something.  I'd recommend a pound cast first off to see how deep your chamber is (case mouth to freebore face), the freebore diameter and the length of the freebore before the leade starts.  

Last tip would be to ask if someone on the forum could send you a few samples of a bullet that you might be interested in so you can do a test fit to see how the bullet fits your bore.  PM messages work great if you don't want to go public with the request.  Good luck and if there's anything I can do to help let me know.  Bill C.

My Uncle once told me that you learn something new every day. And when the day comes that you don’t learn anything, well, that’ll be the day after you die.

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Larry Gibson posted this 05 November 2023

Depends on what the cartridge is going to be used for; plinking. informal target shooting/practice, competition, small game, medium game or larger game.

LMG

Concealment is not cover.........

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4895 posted this 05 November 2023

I'VE BEEN LOOKING AT VARGET FOR I HAVE ENOUGH OF IT. I'M WONDERING IF THE BURNING RATE IS THE SAME AS 4895

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Bud Hyett posted this 05 November 2023

Varget is similar in burning rate to 4895. Experimenting with it will give the best loading. It meters well, is dependable for velocity, and is not position sensitive. 

I used Varget for .30-'06 in several 1903 and 03A3 Springfield rifles, from 27.0 grains to 30.0 grains. The bullet choices were the RCBS 30-180-SP, Lyman 322284 and 311335, sized .311 with LBT Blue lubricant.

When shooting high-power at reduced ranges (200 yards), I chose to shoot cast bullets with this powder. These loads performed well and shot as well as I could. I found lot-to lot variation was greater than most powders, thus worked away from it.

Farm boy from Illinois, living in the magical Pacific Northwest

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