roysclockgun
Handloader
- Dec 17, 2005
- 736
- 1
When I ordered my E.Brown Model 97d rifle I decided to go with 6mm BRM rather than the 6.5mm BRM, because I will likely never use the rifle beyond 300 yds., and because the largest critter that I will likely bring under fire with the rifle, will be a ground hog! My primary reason for the entire project was to have a rifle that I would enjoy shooting at the range, and to have fun working up hand loads. I sold my 1952 made Winchester Model 70 .270Win. and had a bit of cash left over, after I bought the E. Brown rifle, dies and 100 formed cases.
I only ordered the 30-30 headstamped, E. Brown's 6mm BRM cases, because I was not certain how difficult it would be to neck down 30-30 brass on my own. So, I got the minimum order of 100 cases. These needed to be tweaked, as they were not uniform length, had to have their mouths chamfered and their flash holes dressed. After my initial range break-in, cleaning after each round, I began workng on forming my own brass. Since Brown sent me all R-P brass, I began using my once fired 30-30 , R-P brass first, running 20 cases through a 7-30 Waters, full length die, than through the 6mm BRM die. I necked down 20 of each; R-P, Frontier, Winchester and FC. The Remingtons did not step down as well as the others, as the R-P brass showed more of a bulge below the 6mm step. I trimmed all the necked down cases to the length of the ones that Brown had sent. All but R-P got nice, smooth steps up near the mouth, with the 6mm, final neck. All chambered without problems and all fired clovers at 100 yds. The hand loads fired well, blowing the cases out to the very steep shoulder of the 6mm BRM cases. I was using a fairly light load. 70gr. Speer TNT HP bullets, bought in bulk. Winchester Large Rifle Primers, and 32gr. of IMR4895.
Very little exist, in terms of tested loads that I can find for this cartridge. Brown only lists one hand load formula. I will continue to load conservatively and report as I go.
Best,
Steven A.
I only ordered the 30-30 headstamped, E. Brown's 6mm BRM cases, because I was not certain how difficult it would be to neck down 30-30 brass on my own. So, I got the minimum order of 100 cases. These needed to be tweaked, as they were not uniform length, had to have their mouths chamfered and their flash holes dressed. After my initial range break-in, cleaning after each round, I began workng on forming my own brass. Since Brown sent me all R-P brass, I began using my once fired 30-30 , R-P brass first, running 20 cases through a 7-30 Waters, full length die, than through the 6mm BRM die. I necked down 20 of each; R-P, Frontier, Winchester and FC. The Remingtons did not step down as well as the others, as the R-P brass showed more of a bulge below the 6mm step. I trimmed all the necked down cases to the length of the ones that Brown had sent. All but R-P got nice, smooth steps up near the mouth, with the 6mm, final neck. All chambered without problems and all fired clovers at 100 yds. The hand loads fired well, blowing the cases out to the very steep shoulder of the 6mm BRM cases. I was using a fairly light load. 70gr. Speer TNT HP bullets, bought in bulk. Winchester Large Rifle Primers, and 32gr. of IMR4895.
Very little exist, in terms of tested loads that I can find for this cartridge. Brown only lists one hand load formula. I will continue to load conservatively and report as I go.
Best,
Steven A.
