6mmDasher Load Data needed
- Thread starter 6mmdasher
- Start date
Use this sites search. Enter Dasher. You will find all kinds of loads in the discussions. Richard Schatz puts it pretty simple;
"The simple method for creating load data for the 6 Dasher is to find data for the standard 6BR for bullet you intend to use then increase the starting and max loads by four grains. This will give you a safe working range of loads for your Dasher.
,my tests show the Dasher case capacity to be 4 grains more than the standard BR case)"
Richard Schatz
"The simple method for creating load data for the 6 Dasher is to find data for the standard 6BR for bullet you intend to use then increase the starting and max loads by four grains. This will give you a safe working range of loads for your Dasher.
,my tests show the Dasher case capacity to be 4 grains more than the standard BR case)"
Richard Schatz
Varminator:
Fireforming load that works for me is 32.0 grains IMR4895, CCI450 primer, and false-shoulder prepped brass under a 105 Berger/107 SMK. The Dasher load of choice is 33.0 grains RL-15, CCI450, 105/107. Lapua brass in both cases; I use 0.267 bushing for fireforming brass, 0.268 for already fireformed. Bullets seated 0.010" back from hard jam.
More info on the Dasher at my site linked below.
Cheers,
Fireforming load that works for me is 32.0 grains IMR4895, CCI450 primer, and false-shoulder prepped brass under a 105 Berger/107 SMK. The Dasher load of choice is 33.0 grains RL-15, CCI450, 105/107. Lapua brass in both cases; I use 0.267 bushing for fireforming brass, 0.268 for already fireformed. Bullets seated 0.010" back from hard jam.
More info on the Dasher at my site linked below.
Cheers,
Forum Boss
Administrator
I won't fault Richard Schatz, but I think folks are running stouter loads in the standard 6BR than he might surmise. My 6BR fired, FL-sized brass holds 38.2 grains. A Dasher is about 41.0. So, I would suggest adding 2.5 to 3.0 grains to a 6BR load.
Paul,
Your numbers are likely more accurate than mine as when I did my volume comparison, I used an unfired 6br case as I have never had a firearm chambered in the standard 6br,shame on me)
Although I recently did the same test using two pieces of brass from the same lot, one unfired and a Dasher case fired three times and full length resized, and came up with an average 3.8 grains difference.
It would be interesting to see how much the case capacity increases after being fired in a 6br match chamber as compaped to new virgin brass.
Always better to err on the safe side. When using "published" 6br load data for the bullet weight that you plan on using to create load data for the 6 Dasher, increase the starting and max loads by 3.0 grains for a safe working range.
As with all load information, start low and carefully work up slowly watching for pressure signs.
Richard Schatz
Your numbers are likely more accurate than mine as when I did my volume comparison, I used an unfired 6br case as I have never had a firearm chambered in the standard 6br,shame on me)
Although I recently did the same test using two pieces of brass from the same lot, one unfired and a Dasher case fired three times and full length resized, and came up with an average 3.8 grains difference.
It would be interesting to see how much the case capacity increases after being fired in a 6br match chamber as compaped to new virgin brass.
Always better to err on the safe side. When using "published" 6br load data for the bullet weight that you plan on using to create load data for the 6 Dasher, increase the starting and max loads by 3.0 grains for a safe working range.
As with all load information, start low and carefully work up slowly watching for pressure signs.
Richard Schatz
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