300 AAC Blackout

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Re: 300 AAC Blackout

Postby jcat » Mon Nov 18, 2013 9:32 pm

newportri wrote:
SirSqueeboo wrote:
newportri wrote:The case must be different to accomodate a bigger bullet, but can you make a 300AAC case from a .223 case? That's a big difference in bullet diameter..


It's a 223 case shortened and opened up a bit.

Image

I think it is actually necked down since the case is cut down below the shoulder. Can this be done in a press, or do you need some more heavy duty machinery to do this?



It's done with a sizing die on a press:


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Re: 300 AAC Blackout

Postby SirSqueeboo » Mon Nov 18, 2013 10:48 pm

Here's some things to consider:

Image

Image



Oh, and just an FYI, R. Silvers, the developer of the cartridge recommends a 200yd zero.
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Re: 300 AAC Blackout

Postby jcat » Tue Nov 19, 2013 1:29 pm

interesting...I wonder why you'd want to zero at 200 when it's intended to be a fairly short range round out of a short barrel. that would make you shoot pretty high at 50/100 no?
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Re: 300 AAC Blackout

Postby SirSqueeboo » Tue Nov 19, 2013 4:11 pm

jcat wrote:interesting...I wonder why you'd want to zero at 200 when it's intended to be a fairly short range round out of a short barrel. that would make you shoot pretty high at 50/100 no?


I think that's probably the "sweet spot" for having one zero for both subs and supers.
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Re: 300 AAC Blackout

Postby SirSqueeboo » Wed Nov 20, 2013 7:36 am

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Re: 300 AAC Blackout

Postby shovel1966 » Sat Nov 23, 2013 7:10 pm

My Hornady dies just arrived to the house. The only thing I need now is the Dillon powder funnel for .300 blk and will be all set up to reload for this new caliber. :D :D
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Re: 300 AAC Blackout

Postby shovel1966 » Tue Jan 14, 2014 12:34 pm

Here are some of the 180gr Sierra Spitzer Soft Point Boat Tails I loaded. Shot about them at Tiverton Rod & Gun Club. I also loaded a bunch of 147gr rounds. They were not quite as accurate, but I haven't dialed in each load yet.

180 grain 300.jpg
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Re: 300 AAC Blackout

Postby x45 » Thu Jan 16, 2014 12:25 am

How did your reloads cycle? any problems at all?

I recently looked at this caliber and thought it sounded very promising; I am a little concerned to the point that I think I would color code my magazines if I were to buy this baby:

http://www.smith-wesson.com/webapp/wcs/stores/servlet/Product4_750001_750051_799047_-1_757784_757784_757784_ProductDisplayErrorView_Y

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Re: 300 AAC Blackout

Postby newportri » Thu Jan 16, 2014 6:15 pm

Shovel1966,
What is the barrel twist?

I might be going to TRGC myself this Saturday, so let me know if you are going so I can check out your 300 AAC ammo/gun :-)
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Re: 300 AAC Blackout

Postby SirSqueeboo » Thu Jan 16, 2014 7:53 pm

newportri wrote:Shovel1966,
What is the barrel twist?

I might be going to TRGC myself this Saturday, so let me know if you are going so I can check out your 300 AAC ammo/gun :-)



The official recommended twist has gone from 1:8 to 1:7.
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