Need assistance with starting load

[Perry41arms]

Good day guys, i need some help to find a starting load for my 6br with STAball 6.5

I have seen a few of the Dasher guys running it with no issue but i have yet to see load data for a 6 br.
Here is what i have found on Hodgdons website for Staball 6.5 in a Dasher running a 107

Starting Load:
33.2 gr
2,644 fps
40,600 psi

Max Load:
36.9gr
2,943fps
52,300 psi

I am looking to test it with the following bullets:
105 Scenar
108 ELD-M
115 RDF

The stating loads I have in mind are as follows:
105 scenar - 32.8gr
108 ELD-M - 31.5gr
115 RDF - 31gr

I have way of seeing if these loads are safe other than shooting them but it makes me nervous about damaging my rifle. I am not sure if STAball is on Quickload yet

 

[Mr Tibbs]

Good day guys, i need some help to find a starting load for my 6br with STAball 6.5

I have seen a few of the Dasher guys running it with no issue but i have yet to see load data for a 6 br.
Here is what i have found on Hodgdons website for Staball 6.5 in a Dasher running a 107

Starting Load:
33.2 gr
2,644 fps
40,600 psi

Max Load:
36.9gr
2,943fps
52,300 psi

I am looking to test it with the following bullets:
105 Scenar
108 ELD-M
115 RDF

The stating loads I have in mind are as follows:
105 scenar - 32.8gr
108 ELD-M - 31.5gr
115 RDF - 31gr

I have way of seeing if these loads are safe other than shooting them but it makes me nervous about damaging my rifle. I am not sure if STAball is on Quickload yet

STAball 6.5 is a new powder and the data for it is somewhat limited , perhaps this may be a help to you also there is a sticky thread in the reloading depot that could assistance you

6mmBR Cartridge Guide

Complete Guide for 6mm BR Benchrest precision 6BR rifle shooting, complete with 6BR FAQ, Reloading Data, Loads, cartridge guide, Lapua Brass, Berger Bullets, Sierra reloading, Varmint hunting, competition accuracy training. 6mmBR.com accuracy info. Equipment reviews (.243 bullets, 30BR...

www.6mmbr.com

 

[rustyinbend]

Send me the specific (barrel length, case, bullet, powder) ... and I'll run a load chart for you in my QuickLOAD software.

 

[918v]

Good day guys, i need some help to find a starting load for my 6br with STAball 6.5

I have seen a few of the Dasher guys running it with no issue but i have yet to see load data for a 6 br.
Here is what i have found on Hodgdons website for Staball 6.5 in a Dasher running a 107

Starting Load:
33.2 gr
2,644 fps
40,600 psi

Max Load:
36.9gr
2,943fps
52,300 psi

I am looking to test it with the following bullets:
105 Scenar
108 ELD-M
115 RDF

The stating loads I have in mind are as follows:
105 scenar - 32.8gr
108 ELD-M - 31.5gr
115 RDF - 31gr

I have way of seeing if these loads are safe other than shooting them but it makes me nervous about damaging my rifle. I am not sure if STAball is on Quickload yet

Do you have a powder measure and a chronograph?

 

[Perry41arms]

Send me the specific (barrel length, case, bullet, powder) ... and I'll run a load chart for you in my QuickLOAD software.

It's a 28 inch, 1-7.5, lapua 6br brass, 105 scenar

 

[Perry41arms]

Do you have a powder measure and a chronograph?

The issue is where to start

 

[rustyinbend]

It's a 28 inch, 1-7.5, lapua 6br brass, 105 scenar

6BR "Norma", or "Rem"? QuickLOAD asked.

 

[Perry41arms]

6BR "Norma", or "Rem"? QuickLOAD asked.

Sorry it's 6BR Norma

 

[rustyinbend]

The issue is where to start

Sorry it's 6BR Norma

Got the Scenar part number? There are two of them ... GB478 and GB542.

 

[Perry41arms]

GB478

 

[rustyinbend]

Here's the numbers using the 105 Scenar GB478.

It looks like the StaBall issue is "Fill Percentage" ... but it might still work, as I've found that calculation is done inferring the space the bullet uses.

Anyway ... build yourself a ladder test starting around 33.0 and going to 35.0 ... and see how it shoots. I've actually gone a bit above the "Danger Zone" looking for pressure signs, and gotten good results (as long as you do it in little steps like 0.2gr).

Hope this helps.

 

[Perry41arms]

Here's the numbers using the 105 Scenar GB478.

It looks like the StaBall issue is "Fill Percentage" ... but it might still work, as I've found that calculation is done inferring the space the bullet uses.

Anyway ... build yourself a ladder test starting around 33.0 and going to 35.0 ... and see how it shoots. I've actually gone a bit above the "Danger Zone" looking for pressure signs, and gotten good results (as long as you do it in little steps like 0.2gr).

Hope this helps.

View attachment 7554381

Thank you so much Rusty, I really appreciate it.

I'll post the load data up with the details once I've shot it

 

[rustyinbend]

Thank you so much Rusty, I really appreciate it.

I'll post the load data up with the details once I've shot it

Happy to help ... maybe I should sit on the curb outside of Cabela's with a cup and a sign that says:
"WILL CALCULATE LOAD DATA FOR PRIMERS"

 

[918v]

The issue is where to start

Start way low like at 28 grains and use the powder measure to increase the charge at the range.

 

[rustyinbend]

Start way low like at 28 grains and use the powder measure to increase the charge at the range.

My only argument with that, is that if you have the QuickLoad data, you can start safely at a higher velocity and save a lot of reloading supplies shooting at lower velocities that you really don't need to test. The QL info I sent indicates a 33.0 start is very reasonable. I would agree with your advice if I had no data and was just "spit-balling" my first loads. To each his own. Just my humble opinion ... in a time of constrained supplies.

 

[918v]

No you can’t. QL data is only good if you have lab tested data to compare it to. Since he doesn’t have any lab data he has to start low.