Author Topic: Scalloped Barrel Breech  (Read 1014 times)

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Offline Dinny

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Scalloped Barrel Breech
« on: April 11, 2012, 11:27:19 AM »
Has this been thought of or tried already? Any foreseeable problems associated with doing this on a H&R? Should make for easier removal of the cases, especially with gloves on for extractors.

Thanks, Dinny
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Offline trotterlg

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Re: Scalloped Barrel Breech
« Reply #1 on: April 11, 2012, 11:32:30 AM »
I don't see any problem with it, should work just fine.  Larry
A gun is just like a parachute, if you ever really need one, nothing else will do.

Offline Dinny

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Re: Scalloped Barrel Breech
« Reply #2 on: April 11, 2012, 11:40:04 AM »
I don't see any problem with it, should work just fine.  Larry

Thanks Larry!

I wonder if Rog would benefit from something like this? Maybe it would cut a half-second off his follow-up shot time.

Thanks, Dinny
Handi Family: 357 Max, 45 LC, 45-70, 300 BLK, 50 cal Huntsman, and 348 Win.

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Offline LaOtto222

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Re: Scalloped Barrel Breech
« Reply #3 on: April 11, 2012, 11:54:05 AM »
I am not sure why you asked if it was a problem or not. It looks like you did it to me ;D
 
Seriously, the only problem I could think of is if the case head separated or split from the body. You could get hot gasses coming out right over your hand or arm and not too far from your face. But hey you should live with a little drama in your life. :o
 
BTW that doesn't look like a Handi barrel to me, it looks like brand X (T/C)
 
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Offline tacklebury

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Re: Scalloped Barrel Breech
« Reply #4 on: April 11, 2012, 11:57:16 AM »
I think the one shown is something different. Extractor doesn't appear to be H&R.  I think it'd be fine so long as you kept it shallower than the web of the round.  To my eyes that one might be a hair deeper than I'd want if I were using high end loads.
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Offline gendoc

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Re: Scalloped Barrel Breech
« Reply #5 on: April 11, 2012, 12:10:37 PM »
I think the one shown is something different. Extractor doesn't appear to be H&R.  I think it'd be fine so long as you kept it shallower than the web of the round.  To my eyes that one might be a hair deeper than I'd want if I were using high end loads.

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Offline bikerbeans

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Re: Scalloped Barrel Breech
« Reply #6 on: April 11, 2012, 03:08:23 PM »
Doubles as a loaded chamber indicator.
 
I have a mini-scalloped breech face on a 270 Win barrel, but that was from old guys with bad eyes using an endmill.  :P   
 
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Offline Dinny

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Re: Scalloped Barrel Breech
« Reply #7 on: April 11, 2012, 06:04:44 PM »
I'm gonna get one done like that. It will be next year sometime before I can post a follow-up pic, if I remember too.  ::)

Thanks, Dinny
Handi Family: 357 Max, 45 LC, 45-70, 300 BLK, 50 cal Huntsman, and 348 Win.

"If there must be trouble, let it be in my day that my child may have peace"
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Offline trotterlg

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Re: Scalloped Barrel Breech
« Reply #8 on: April 11, 2012, 07:04:30 PM »
That barrel is from a TC, but if a Handi blows a primer or seperates a case, it blows the ejector/extractlr down into the frame which blows the plastic trigger guard out onto the bench or your hand.  I know this.  A mod like this could prevent this event.  Larry
A gun is just like a parachute, if you ever really need one, nothing else will do.

Offline Dinny

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Re: Scalloped Barrel Breech
« Reply #9 on: April 11, 2012, 07:12:33 PM »
A mod like this could prevent this event.  Larry

Please explain. Does this give it somewhere else to go? Sides instead of bottom?

Thanks, Dinny
Handi Family: 357 Max, 45 LC, 45-70, 300 BLK, 50 cal Huntsman, and 348 Win.

"If there must be trouble, let it be in my day that my child may have peace"
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Offline bikerbeans

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Re: Scalloped Barrel Breech
« Reply #10 on: April 11, 2012, 10:16:59 PM »
Dinny,
 
CW had his 223 (IIRC) blow out through the bottom of his gun when he had a case failure. Maybe a year ago, he posted picks of it.  The infamous hot loaded 270 Win blew out through the trigger guard as well as about everywhere else. :o
 
BB
RIP Tom: Tom Nolan, ( bikerbeans) passed away this afternoon (02-04-2021).

Why be difficult, when with a little extra effort you can be impossible?

Wife's Handis;  300 BLKOUT

MINE:  270W, 308x444, 44 Bodeen, 410 shorty rifled slug gun, 445 SuperMag Shikari, 45 ACP shorty,  45-70 Shikari, 45 Cal Smokeless MZ, 50cal 24" SS Sidekick, 50 cal 24" Huntsman, 50 cal 26" Huntsman, 50 cal 26" Sidekick, 50-70 Govt Shikari, Tracker II 20 ga shorty, 20 ga VR Pardner, 20ga USH, 12ga VR NWTF, 12ga Tracker II shorty WITHOUT scope, 12ga USH, 10 ga  Pardner Smoothbore slug gun & 24ga Profino Custom rifled slug gun.

Offline petemi

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Re: Scalloped Barrel Breech
« Reply #11 on: April 11, 2012, 10:33:08 PM »
What keeps the unsupported case from bulging near the head ??? ???

Pete
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Offline bikerbeans

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Re: Scalloped Barrel Breech
« Reply #12 on: April 11, 2012, 10:36:21 PM »
 
 
What keeps the unsupported case from bulging near the head ??? ???

Pete

Pete,
 
I would think you would want to stop the scallop short of the web.  As TB pointed out the one in the pic. might be a tad deep.
 
What are you doing up so early?  Wait, what am I doing up?  Oh year, the hounds had to go out for their nightly meet and greet with the possums & coons.  ;D
 
BB
RIP Tom: Tom Nolan, ( bikerbeans) passed away this afternoon (02-04-2021).

Why be difficult, when with a little extra effort you can be impossible?

Wife's Handis;  300 BLKOUT

MINE:  270W, 308x444, 44 Bodeen, 410 shorty rifled slug gun, 445 SuperMag Shikari, 45 ACP shorty,  45-70 Shikari, 45 Cal Smokeless MZ, 50cal 24" SS Sidekick, 50 cal 24" Huntsman, 50 cal 26" Huntsman, 50 cal 26" Sidekick, 50-70 Govt Shikari, Tracker II 20 ga shorty, 20 ga VR Pardner, 20ga USH, 12ga VR NWTF, 12ga Tracker II shorty WITHOUT scope, 12ga USH, 10 ga  Pardner Smoothbore slug gun & 24ga Profino Custom rifled slug gun.

Offline petemi

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Re: Scalloped Barrel Breech
« Reply #13 on: April 11, 2012, 10:56:46 PM »
I'm up early every morning for the same reason.  No possums, but coons yes.  I worry about them with the wolves and coyotes.  They're pretty bold.  "Charlie", my feist, is a tad smaller than a yote, but he's quicker than a Whippet.....could save him.  The other two house dogs are larger and home bodies.  Total = 6 dogs now.  A friend died last week and I inherited another ::)   Just what I need.

Pete


Keep both eyes open and make the first shot good.
The growing Handi/Sportster/Pardner/Topper Family:  .22 WMR, .22-250. 223, Two Superlight 7mm-08s and one .243, .30-30,  .308, 32-20, 18 inch .356/.358 Win., Two 16.5 inch .357 Max., 18 inch 38-55 BC Carbine, 16.5 inch .445 Super Mag., .45LC, 16.5 and 22 inch .45-70s, .50 Huntsman SS, .410, 20 ga., 12 ga., 20 ga. Pardner Pump, Versa-Pack .410 - .22
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Offline cwlongshot

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Re: Scalloped Barrel Breech
« Reply #14 on: April 11, 2012, 11:29:18 PM »
Mornin guys!!

Up for the chickens and dogs here too!

As stated, that pic looks like the GS took a bit too much material away to me, but if a bit more was left it should work just fine on lower pressure offerings... I do not feel comfortable with this in 60K pressure calibers...

In my semi auto hand guns, running at 2/3 that pressure begin to bulge from this. They are called unsupported chambers. In a 1911 push the vel up to +P+ pressures and you will have issues with this style barrel. (45 ACP starts out at a high of 19K) You need to re machine and install a fully supported chamber. One with a ramp as a integral part of the barrel.

I see no reason a rifle will be no different...

CW
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Offline dpe.ahoy

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Re: Scalloped Barrel Breech
« Reply #15 on: April 12, 2012, 03:24:04 AM »
Yep, I agree, that one looks too deep to be comfortable with.  Thats why I like the ejector barrels, don't have to worry about it. ;)   If I loose a case or two while shooting, it's not a total bummer and not gonna break the bank.  Pretty open area where I shoot for fun, I don't loose too many.  It does suprise me how some just seem to totally disappear. :P   DP
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Offline LaOtto222

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Re: Scalloped Barrel Breech
« Reply #16 on: April 12, 2012, 03:24:33 AM »
To me, the disadvantages out weight the advantages. If there is an extraction problem, I do not think that the extra grip is going to make a difference to pull the case clear.  On an ejector, the case is going to clear anyway, unless there is a problem, like over pressure or a rough chamber. That can be fixed, with out cutting away the chamber. Then there are head spacing issues on rimmed cases like the 22 Hornet and 30-30, where the shoulder is not that sharp and defined. I have already voiced my concerns over the safety aspect. Hopefully, you never have a head separation, but if you do, I think I want as much steel around the head as I can get. I have a mill and could do this modification very easily, but doing this is not going to happen with any of my guns. This is my personal opinion of course, to each their own.


Just one last thought...if it was safer (blowing out to the side in a case head separation) and easier to get out cases, why doesn't H&R, T/C, Rossi, or CVA offer barrels cut like that?


Good Luck and Good Shooting
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Offline quickdtoo

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Re: Scalloped Barrel Breech
« Reply #17 on: April 12, 2012, 04:44:22 AM »
Looks a bit agressive to me, would work fine if it wasn't so deep, but my modified extractor provides just as much advantage without any risks. It also may affect how the barrel fits the frame since there's a lot less standing breech face contact surface, seems to me that it would work better on a TC because of their fixed pivot.

Tim
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Offline Goatwhiskers

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Re: Scalloped Barrel Breech
« Reply #18 on: April 12, 2012, 12:05:10 PM »
No recollection of where I saw it, but I have seen pics of a Handi done somewhat in that manner.  The cut was much less of an angle, didi't come out anywhere near the edge, and the depth was such that the owner could use the inevitable pocketknife or screwdriver to pop out a case that failed to extract by catching the rim, didn't go anywhere near the depth of the web.  Goat

Offline quickdtoo

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Re: Scalloped Barrel Breech
« Reply #19 on: April 12, 2012, 12:42:15 PM »
No recollection of where I saw it, but I have seen pics of a Handi done somewhat in that manner.  The cut was much less of an angle, didi't come out anywhere near the edge, and the depth was such that the owner could use the inevitable pocketknife or screwdriver to pop out a case that failed to extract by catching the rim, didn't go anywhere near the depth of the web.  Goat

Yeah, like in the FAQs,  Ejector Notch by Fred M.

Tim

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Offline Goatwhiskers

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Re: Scalloped Barrel Breech
« Reply #20 on: April 12, 2012, 01:36:23 PM »
There ya go, Tim!  Knew I'd seen it somewhere.  They say memory is the first thing to go, don't remember what comes next.