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30BR powder dilemma

My smaller bushings (323 & 324) arrived.
I now have some choices to make.

Do I neck size, or FL size? Do I try the 323, or the 324 first?

Thanks in advance.
 
LarryDScott said:
I bought a 30BR used, and it came to me with load info
using H4198. It was the most accuracy consistent rifle
I had ever owned. I didn't keep it long, because I didn't
like the recoil when shooting it free recoil. At the time,
it seemed that H4198 was the go to powder for the caliber.
LDS
Click to expand...
larry i do want to thank you again for selling me that barrel and components . it really likes those 118 hillbilly bullets .
 
I loaded 20 each with the 323 & 324 bushings. Ten of each in the neck size die, ten in the FL. Half of them had .2gr more powder than where I left off, the other half have .4gr more. The cases are FULL!
I seated with more jam than I was using.
It was lots of work, but they look pretty shooty to me.
Hopefully I can get out and test tomorrow evening.
"RAMMA LAMMA JAMMA" baby!
 
Bat Rastard said:
I loaded 20 each with the 323 & 324 bushings. Ten of each in the neck size die, ten in the FL. Half of them had .2gr more powder than where I left off, the other half have .4gr more. The cases are FULL!
I seated with more jam than I was using.
It was lots of work, but they look pretty shooty to me.
Hopefully I can get out and test tomorrow evening.
"RAMMA LAMMA JAMMA" baby!
Click to expand...
Full length size and bump .002". Keep length consistent by trimming every two shots. Use the .324" bushing. I've never used anything less than a .325". I'm shooting 115g bullets and everything seems to shoot best with a full case of powder slightly compressed. Many groups in the zero's. I'm using H4198.
 
JimPag said:
Wow I'm getting 3100FPS with some 108 Clines that I have using 34.3 grains of H4198 with a 23" Krieger 17TW with my newer Farley Black Widow. I'm getting the same speed with my other FBW same length BBL, same twist but using 34.5 grains with the same bullet. I just tried putting 37 grains in my case with a 20" drop tube and it came up 3/32" short of filling the entire case. As far as telling the difference between 108's and 115's I can't notice any difference in recoil and I've been shooting both for quite a while.
Click to expand...
I am using the same bullets. I don’t have, and have not been able to locate H4198, so I decided to give it a go with what I do have. This is my first go round with the 30br and I am shooting a 10.5 lv Bat 3L. Will have to add some weight to the stock for sure, or add a recoil pad, or upgrade my man card ;).

Started with H322 just to get the feel of things. 37.7 got me got me to 3013fps with no pressure signs.

Decided to determine seating depth using Lt30, since it is suppose to be faster. 35gr. was at 3063-3090fps as I worked out of the lands. I started hard into the lands and the groups were blowing up. As I moved out, they seem to be settling down. I will continue to move out until they open up to find seating depth and then go to work tuning the charge. I expect it to tighten up the next couple of moves out of the lands.

A lots different than shooting my ppc, dasher or bra for sure. More like shooting my muzzleloader. The 6mm loads have spoiled me, but I will get it figured out by the time I get it tuned with the Lt30.
 

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Bat Rastard said:
I shot them all.
What I learned:
1. Wait for a less windy day for comparison testing.
2. Bring a few extra to foul the bore.
3. 36.0 grains FL sized looks promising with the 324 bushing.
Click to expand...
Great observation about wind effect on groups. I never test without wind flags. When I find a load I put it to the ultimate test and see how it shoots in the wind. There are loads that shoot "thru the wind"! I work around 34.0 gr. and that's a full case.
 
LCazador said:
Great observation about wind effect on groups. I never test without wind flags. When I find a load I put it to the ultimate test and see how it shoots in the wind. There are loads that shoot "thru the wind"! I work around 34.0 gr. and that's a full case.
Click to expand...
34.0 of what powder?


I took my calipers to my target. On first impression the 324 bushing got the nod. When I threw out 1 shot from each group to account for wind, the 323 has the edge.

I have yet to develop wind skills as a shooter. That is the next level. I will get there.
 
Last edited:
Bat Rastard said:
34.0 of what powder?


I took my calipers to my target. On first impression the 324 bushing got the nod. When I threw out 1 shot from each group to account for wind, the 323 has the edge.

I have yet to develop wind skills as a shooter. That is the next level. I will get there.
Click to expand...
34.0 grains of H4198 as my previous post says. Without any wind gauge it's tough finding the correct load. What looks like a great load when there's little to no wind could turn out to be horrible when it blows. Shoot when there's the least amount of wind, obviously and then test again with wind. You'll need a wind meter to measure flags and learn effects of wind! Good luck!
 
Here's a good representative example on a final load development after roughing in powder, seating depth, then fine tuning powder, and this target is finally only final seating depth and bushings.

Top line and the one shot on the second line is all the same bushing, moving in seating depths of .002.
3rd line is same seating depth (as the corresponding above it) with different bushing .001 difference. You can quite easily tell the different that it makes. Everything but the one marked with 5 shots were 2 or 3 shot groups until it started printing one hole. Then went one beyond that to see where it starts to come out of tune.

I keep track of all the targets through the process. This 5 shot group and the ones on either side mirrored exactly my rough powder/seating target from months earlier with 30 degrees difference in temp. Vertical, into one hole, into ragged hole.

This is why flags are important. As mentioned, even at 100 yards, a load that will shoot very small can be blown a whole bullet hole out with a wind change and you'd never know.


20210408_072528.jpg
 
OmegaRed said:
Here's a good representative example on a final load development after roughing in powder, seating depth, then fine tuning powder, and this target is finally only final seating depth and bushings.

Top line and the one shot on the second line is all the same bushing, moving in seating depths of .002.
3rd line is same seating depth (as the corresponding above it) with different bushing .001 difference. You can quite easily tell the different that it makes. Everything but the one marked with 5 shots were 2 or 3 shot groups until it started printing one hole. Then went one beyond that to see where it starts to come out of tune.

I keep track of all the targets through the process. This 5 shot group and the ones on either side mirrored exactly my rough powder/seating target from months earlier with 30 degrees difference in temp. Vertical, into one hole, into ragged hole.

This is why flags are important. As mentioned, even at 100 yards, a load that will shoot very small can be blown a whole bullet hole out with a wind change and you'd never know.


View attachment 1276893
Click to expand...
what powder in this example?
 
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