You gotta love Starline Brass. I've waiting on 6.5 Grendel from there for what seems like a uear. I ordered 6.5 Grendel brass on Friday and it was listed as back ordered. I received my shipment today, 3 days later.:):):)
I was curious About how much brass was left aft turning. I took a case that I had turned and increased the length of cut in 0.004" increments. I went to 0.016" total when it cut thru and separated neck from shoulder.
I'm using an RCBS neck trimmer with their pilot/reamer. I'm not seeing any...
Thanks for the input.
I searched the internet and decided to check with the experts. I was concerned that hitting the shoulder would weaken the brass excessively.
I apologize if this has been discussed. I was unable to locate any info on the site.
I am converting 7.62x39 brass to 6.5 grendel. I have sized and ready for firing. I measured neck wall thickness to vary between 0.010-0.014" on all cases measured. Not surprising since it was necked down. Have...
I am the process of fireforming 7.62x39 to 6.5 grendel. It appears the general consesus is to go to the minimum advertised powder charge. I did some measuring using AA 9 as it is a fine grain powder.
Brand new unfired Starline 6.5 grendel would hold 33 gr of AA 9.
Unfired but formed 6.5 grendel...
I had the same problem with reforming 7.62x39. I solved the problem by sizing then rotating the case 90 degrees and sizing again. No more feed problems.
Powered RCBS trim pro with 3 way cutters. Works great and consistent. Every piece of 223 brass is exactly the same. been using it for 27 years. Wouldn't trade it for any other trimmer.
The PPU cases that I'm using are at 0.014" thickness. So that equates to 0.292"dia. neck thickness. That is less than SAMMI specs of 0.300" for neck diameter of the chamber.
I plan on fireforming 7.62x39 into 6. grendel. I know this is not optimal but gonna do it anyway. I have 123 gr. projectiles and plan on using IMR 4895 for fireforming. I already have resized the 7.62x39 brass. I would like to know how much powder is needed to fully fireform. I have fireformed...
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