Why wouldn't it be reusable? (The cases are reusable to answer your question). Lots of cartridge cases are formed, cut or otherwise altered to get them to their end-use state.
300 BO brass question
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EricBu
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It's as good as the brass the conversion was done from. Like LC, you can load that a ton. PMC, not as much. PPU and S&B also don't seem to hold up long. The main things that contribute to longevity on converted brass is first and foremost, annealing it after the conversion. Next is how aggressive you work it. If you're loading on a progressive with a bullet feeder, or loading cast, you're belling it and so have to crimp it... If you work it aggressively and fail to anneal, it will crack the necks in short order. Plus, since you're using the body of the original 5.56, it's very hard, as it was NEVER annealed there...so if you aren't annealing, you'll have crap neck tension (depending on the brass used, it can be really bad) and so you may try and counter that (improperly I might add) by crimping heavily. Finally, how hot you load it. Standard loads, with quality brass, annealed and properly prepped will last as long as anything out there. I have LC that I've converted and annealed that have 15 loads on it, with no signs of failing. I've got PMC that failed primer pocket go/nogo after 3 or 4 firings. Stuff I did early on, before I started annealing, often developed cracks in the neck, and after a couple of loadings, even if not cracked, the neck tension was horrendous.
Soonerpesek
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I was inquiring because you are basically cutting the neck/shoulder off the .223 and forming a case below the initial annealed part..@ EricBu answered my question…
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DownEaster
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FROGO207 just an FYI but Starline has 300BLK brass in stock on their website. I've done the whole convert from 223/556 thing in the past and would not bother at this point with quality brass being so available.
Gone Hiking
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Once it's cut down, reformed to .300 Blk, and sized, you can load it again and again like any other brass.
With subsonic and light loads the brass can be used may times. I'm positive I have converted cases that have 20+ loads on them without issue. I don't keep track when bringing various loaded magazines and boxes of ammo for use in an AR but I have reused the same batch of a couple hundred through dozens of trips to the range.
gpb
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The first thing I do after forming 300 BO from 223 is anneal the neck. I do this for uniform sizing of the cases.
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FROGO207
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Jackiesman
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mcb
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I hear yah. When cash is short your time become the currency you use, especially if you have free time to burn. I have been there in the past.
Jackiesman
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That’s a beautiful site for my eyes. My best score was an ammo can full which gave about 75 cases to convert. You’re a lucky guy - congrats,
Mr.Revolverguy
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I too got involved with 300blackout before it was even a saami spec with 300Whisper, 300blackout's father. I have learned a whole lot and just for the sake of us reloaders and 300blackout lovers I started documenting, even when I took some old 222Fireball cases and necked them UP to 30cal. This is actually how the cartridge was created back in the day. Redding actually sent me everything I needed for this necking up exercise and asked for me to keep them informed.
As I understand it through my research this cartridge was based off the 300 Whisper though interestingly enough there is no difference in the cartridge . The difference lies in the rifle chambers where the 300 Blackout chambers are a little longer than the 300 Whisper, and the lineage of the 300 Whisper began in 1990 by J. D. Jones who neck up a 221 Remington Fireball case to accept a .30 caliber.
According to Robert Silvers Development Director for AAC the 300 Blackout was created as a Low Visibility Carbine that’s as quiet as the MP5 with three times the distance.
Same brass from the wilson gauge in the Sheridan. FYI I am not affiliated with Sheridan at all and honestly do not know if they are still around but hope so as small businesses in this country is NEEDED.
If you are going to form your own brass invest into a Sheridan case guage you will save yourself a lot of headache.
As I understand it through my research this cartridge was based off the 300 Whisper though interestingly enough there is no difference in the cartridge . The difference lies in the rifle chambers where the 300 Blackout chambers are a little longer than the 300 Whisper, and the lineage of the 300 Whisper began in 1990 by J. D. Jones who neck up a 221 Remington Fireball case to accept a .30 caliber.
According to Robert Silvers Development Director for AAC the 300 Blackout was created as a Low Visibility Carbine that’s as quiet as the MP5 with three times the distance.
- Create a reliable compact 30-cal solution’s for AR platform
- Utilize existent inventory magazines while retaining their full capacity
Create the optimal platform for sound and flash suppressed - Create compatible full power ammunition that matches 7.62×39 ballistics
Work with subsonic and full power ammunition without requiring adjustable gas. - Provide the ability to penetrate barriers with high-mass projectiles
- Provide all capabilities in a lightweight, durable, low recoiling package
Same brass from the wilson gauge in the Sheridan. FYI I am not affiliated with Sheridan at all and honestly do not know if they are still around but hope so as small businesses in this country is NEEDED.
If you are going to form your own brass invest into a Sheridan case guage you will save yourself a lot of headache.
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