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Author Topic: Rechamber Possibilities  (Read 1189 times)

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Offline Dinny

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Rechamber Possibilities
« on: January 14, 2012, 03:40:47 PM »
What opportunities does the "proposed" 300 AAC barrels offer for us if we want to rechamber it? I'm hoping the barrels will be 1:8" twist.

http://www.saami.org/PubResources/CC_Drawings/Rifle/300%20AAC%20Blackout.pdf

Thanks, Dinny
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Offline Jason F

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Re: Rechamber Possibilities
« Reply #1 on: January 14, 2012, 03:45:54 PM »
I wonder where we can buy them at
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Offline Dinny

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Re: Rechamber Possibilities
« Reply #2 on: January 14, 2012, 03:50:12 PM »
Quote from: Jason F on January 14, 2012, 03:45:54 PM
I wonder where we can buy them at


I'm not sure, maybe Buds? I don't see a need for one myself. I just wonder what doors this chambering and twist would open for tinkerers like me.




Thanks, Dinny
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Offline TNBilly

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Re: Rechamber Possibilities
« Reply #3 on: January 14, 2012, 05:03:46 PM »
Dinny,
  If you did not want to modify either bore OR extractor specs then the only candidates I could come up with are the 300 Whisper and the 30-223 Apache.  If willing to modify the extractor and increase the rim size then just about anything of 30 caliber would be a valid candidate but, in the Handis' case short of a magnum of course.

Ron
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Offline petemi

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Re: Rechamber Possibilities
« Reply #4 on: January 15, 2012, 03:59:55 AM »
I haven't a clue as to why H&R discontinued popular calibers with factory ready ammo in favor of one that is handload only, and without a huge following. ??? ??? ???    Personally,  I have zero interest in the .300 Whisper and Blackout.  lf I were so inclined, I believe my .32-20 could do as well with a slow heavy slug and still push a 100 gr. bullet over 2200 fps.

Pete
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Offline geezer56

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Re: Rechamber Possibilities
« Reply #5 on: January 15, 2012, 05:19:42 AM »
If it's a 1-8 twist, any of the 30 cal would work with heavy cast bullets.  I think a 30-30 shooting 220-250 gr cast bullets would be a hoot.  What's not to like-factory brass, a rim on the brass, heavy bullet (or boolit) that can be loaded slow and quiet without a can.  I got a BLK in an AR, but the handi will be a gotta have also.  A 30-40 Kag would also be fun, with a bit more ooommph than the 30-30 can provide. 
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Offline twoshooter

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Re: Rechamber Possibilities
« Reply #6 on: January 15, 2012, 05:35:12 AM »
If I could buy that 32/20 I would in a heartbeat. But I can't. I am thinking this may be a stealth campaign for the "unchambered barrel", a chambering so small that you can go anywhere from here. I already have a standing order with my dealer to order one, and dies on the way. 223 brass is cheap and all over, and with the military drawdown ammo and components should get even cheaper. I would probably also rent a reamer and cut a rim into the chamber so I can use 357 cases, and 360 DW cases should be about perfect if one could find them reasonable. I am also looking at it because of the threaded barrel, and what a muzzle brake or flash suppressor might do. And face it, I can always use another frame/stock set.

PS, what is the barrel length,profile, and twist rumored to be???
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Offline Doublebass73

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Re: Rechamber Possibilities
« Reply #7 on: January 15, 2012, 05:35:20 AM »
Has anyone tried the 300 Blackout on whitetail? Just curious as to how it would do with a heavier 220 grain slug.
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Offline twoshooter

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Re: Rechamber Possibilities
« Reply #8 on: January 15, 2012, 05:46:49 AM »
I would say the very heavy slugs would not be the best hunting rounds, too much penetration, no expansion. The 125 gr should perform excellenty, very like a 30 Herrett in the contender. I will be looking at what a 71 gr 32 ACP bullet will do out of one on varmints, or an 85 gr Hornady HP. Any of the new bullets for the 327 mag in fact.
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Offline bikerbeans

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Re: Rechamber Possibilities
« Reply #9 on: January 15, 2012, 06:25:32 AM »
Quote from: petemi on January 15, 2012, 03:59:55 AM
I haven't a clue as to why H&R discontinued popular calibers with factory ready ammo in favor of one that is handload only, and without a huge following. ??? ??? ???    Personally,  I have zero interest in the .300 Whisper and Blackout.  lf I were so inclined, I believe my .32-20 could do as well with a slow heavy slug and still push a 100 gr. bullet over 2200 fps.

Pete

I agree, bet they could sell alot more .30 carbine barrels and with the added advantage of many more possible rechambers.
 
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Offline Dinny

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Re: Rechamber Possibilities
« Reply #10 on: January 15, 2012, 06:35:25 AM »
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Offline quickdtoo

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Re: Rechamber Possibilities
« Reply #11 on: January 15, 2012, 06:40:22 AM »
Quote from: Jason F on January 14, 2012, 03:45:54 PM
I wonder where we can buy them at

Last I saw they're only available from AAC or their distributors who special ordered them from H&R, $359 MSRP.

Tim
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Offline cwlongshot

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Re: Rechamber Possibilities
« Reply #12 on: January 15, 2012, 08:00:57 AM »
If it is truly gonna be 1:8 twist ( I dunno why)  although my theory is people seeing the real fast twists in the 223 and 5.56 and now think super fast twists are needed for all calibers shooting heavy bullets. What they fail to realize is a 80 g 223 is quite a specialized bullet. Being small dia the rotational forces are increadibule. Coupled with thin jackets, slower twists helped keep bullets together!
The longest readily avalible bullet is the 220g Barnes used to have a 250g. ( May still
I don't know) but these did fine at 1:12 and 1:10 twist barrels.  Now would 1:8 be better for these 220's who knows. The neatest thing I could think of would be just what it is, small powder cap long heavy bullet, suppressor and sub sonic velocities.

(I just remembered Barnes used to make a 195g 7mm too! That was a long bullet!!!)

Maybe a rechamber to 30/40 to take advantage of the twist and that calibers loadings of the 220 bullet...

I'm kinda rambling now...

I also have little to no interest in this lil 30 caliber. 

CW
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Offline quickdtoo

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Re: Rechamber Possibilities
« Reply #13 on: January 15, 2012, 08:24:02 AM »
The 300 BLK Handi barrel comes threaded for a suppressor, the 1:8" twist allows bigger .30 cal bullets to stabilize at sub-sonic velocities.

Tim
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Offline twoshooter

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Re: Rechamber Possibilities
« Reply #14 on: January 15, 2012, 04:14:31 PM »
If I have to pay my local guy for shipping AND,  transfer AND 359$ AND tax, that is a little  bit STEEP. :-\
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