- Feb 4, 2013
- 28,175
Do you size your factory ammo???????
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- Thread starter Speedluvn
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Do you size your factory ammo???????
- Feb 4, 2013
- 28,175
Factory Reformed is not Factory NEW brass.
- Feb 4, 2013
- 28,175
What NEW brass have you had not gauge? What brand?
- Jul 29, 2014
- 49,992
- Feb 4, 2013
- 28,175
I might drop one out of the container in a case gauge, but resizing all of them?????
- Jul 29, 2014
- 49,992
In which case?
Doco Overboard
Ultimate Member
I run new brass through a sizing die. I just loaded some 7.7 where neck tension wasn't up to snuff.
Ive also had the same problem with Remington brass in 7x57 from the same lot but it was in a 500 ct box.
FWIW I also loaded cartridges without resizing. None of them are formed to the chamber for any of the rifles anyhow, they're made to SAMMI spec and the chambers are not.
Same thing with belted and rimless cases that I have loaded. None of them touch the shoulder or the head spacing portion of the barrel at the same time.
Spilling powder and interruption during the loading process is what I'm trying to avoid.
300 Bo seems pretty finicky. There's been a number of threads on here all with similar problems for the ammo assembler.
I don't think I have bought brass since the eighties but, if I did, then I ran the bottleneck cases through a full length size die. After that, they were all loaded with a size die set for the rifle is was going to be used in. For shooting long range, it gave better accuracy if you started from some base line. Today I load for function and am happy with 2 inches at 50 yards. 
The 300 Blackout indeed has its quirks, mostly because we are using all versions of a semi auto AR. The 7.62x39 had it's share of issues when people started loading for it also. The big difference is, before Ed Harris designed the Lee 155gn cast bullets, most of us were using jacketed bullets at supersonic velocities. With the 300 Blackout, we are shooting it with cast, jacketed, subsonic, supersonic, pistol gas, carbine gas, flat spring, round spring, 110 grain bullet to 220 grain bullets etc., etc.
Now, if you just chambered up a Savage 111 for it, we probably wouldn't have had a tenth of the issues. Of course we wouldn't have had much fun that way.
The 300 Blackout indeed has its quirks, mostly because we are using all versions of a semi auto AR. The 7.62x39 had it's share of issues when people started loading for it also. The big difference is, before Ed Harris designed the Lee 155gn cast bullets, most of us were using jacketed bullets at supersonic velocities. With the 300 Blackout, we are shooting it with cast, jacketed, subsonic, supersonic, pistol gas, carbine gas, flat spring, round spring, 110 grain bullet to 220 grain bullets etc., etc.
Now, if you just chambered up a Savage 111 for it, we probably wouldn't have had a tenth of the issues. Of course we wouldn't have had much fun that way.
- Feb 4, 2013
- 28,175
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