Reloading the 300 Blackout
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All handloading data posted on Full-Bore UK from 23/2/2021 must reference the published pressure tested data it was sourced from, posts without such verification will be removed.
Any existing data without such a reference should be treated as suspect and not used.
Use reloading information posted here at your own risk. This forum (http://www.full-bore.co.uk) is not responsible for any property damage or personal injury as a consequence of using reloading data posted here, the information is individual members findings and observations only. Always verify the load data and be absolutely sure your firearm can handle the load, especially older ones. If in doubt start low and work your way up.
Reloading the 300 Blackout
Is anyone here forming 300 Blackout brass from cut down .223 or do you just go for factory brass?
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phaedra1106
- Posts: 3429
- Joined: Wed Feb 08, 2012 9:37 pm
- Location: Just outside Sacriston (the nice bit!)
- Contact:
Re: Reloading the 300 Blackout
I've gone a slightly different route, I bought a few hundred from Brad's Warehouse, these are once fired Lake City .223 formed into 300aac and are very nice indeed,
http://www.bradswarehouse.com/index.php?p=1_2_Buy-Brass
Also got a couple of hundred from DogyRog which are R P head stamped (Remington I believe) but the primer pockets aren't as tight as the Lake City.
As 99% of my 300aac are shot at 25m (3.1g N310 and 115g Soupcan Boolit) the brass gets very little working so should last quite a while, I've only had 3 or 4 which needed trimming to length.
http://www.bradswarehouse.com/index.php?p=1_2_Buy-Brass
Also got a couple of hundred from DogyRog which are R P head stamped (Remington I believe) but the primer pockets aren't as tight as the Lake City.
As 99% of my 300aac are shot at 25m (3.1g N310 and 115g Soupcan Boolit) the brass gets very little working so should last quite a while, I've only had 3 or 4 which needed trimming to length.
There's room for all Gods creatures, next to the mash and gravy :)
Re: Reloading the 300 Blackout
Bards Warehouse are very cheap, downside is they do not ship outside of the USA.
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phaedra1106
- Posts: 3429
- Joined: Wed Feb 08, 2012 9:37 pm
- Location: Just outside Sacriston (the nice bit!)
- Contact:
Re: Reloading the 300 Blackout
I picked mine up when we were over there in 2012.
Personally I wouldn't pay for factory brass, cut down and formed 222 or 223 works perfectly for the majority of 300aac reloaders, factory brass simply wasn't available in any quantities until recently.
If you want some samples of the Lake City and R P cases I can stick them in the post tomorrow?
Personally I wouldn't pay for factory brass, cut down and formed 222 or 223 works perfectly for the majority of 300aac reloaders, factory brass simply wasn't available in any quantities until recently.
If you want some samples of the Lake City and R P cases I can stick them in the post tomorrow?
There's room for all Gods creatures, next to the mash and gravy :)
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John MH
Re: Reloading the 300 Blackout
Been making .300 Whisper for years out of 5.56mm Brass, more recently .300 Blackout. Its simple, lots of info on the web.
Re: Reloading the 300 Blackout
phaedra1106, many thanks for the offer however I have some coming now via JMH 
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