roysclockgun
Handloader
- Dec 17, 2005
- 736
- 0
I am working up loads for 6mmBRM. For those who do not know, this is a 30-30 case, blown out to a steep shoulder and necked down to a 6mm mouth. The case length is very close to 243Win. The bullets used for both are, of course, the same. There is very little data available for loading 6mmBRM. The manufacturer, E. Brown, only gives one formula for loading.
I am not looking to load up to max. 243WIN MV. I only want to load range ammo at low to medium velocity for that cartridge. E. Brown claims that when pressures begin getting too high, the falling block breach will be hard to open and achieve extraction.
My question is: Is it not reasonable to assume that I can load any starting load, given in data for 243Win., in my 6mmBRM?
So far, I have only used three loads in my 6mmBRM, all taken from 243WIN data. (1) 100gr. Sierra SP with 32gr. IMR4895. (2) 70gr. Speer TNT with 32gr. IMR4895. (3) 70gr. Speer TNT with 31gr. IMR4895. Any and all opinions will be appreciated.
Steven A.
I am not looking to load up to max. 243WIN MV. I only want to load range ammo at low to medium velocity for that cartridge. E. Brown claims that when pressures begin getting too high, the falling block breach will be hard to open and achieve extraction.
My question is: Is it not reasonable to assume that I can load any starting load, given in data for 243Win., in my 6mmBRM?
So far, I have only used three loads in my 6mmBRM, all taken from 243WIN data. (1) 100gr. Sierra SP with 32gr. IMR4895. (2) 70gr. Speer TNT with 32gr. IMR4895. (3) 70gr. Speer TNT with 31gr. IMR4895. Any and all opinions will be appreciated.
Steven A.