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Author Topic: RB size for my 12 gauge ?????  (Read 633 times)

Offline Skychief

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RB size for my 12 gauge ?????
« on: April 29, 2010, 08:57:56 PM »
I have a T/C New Englander with a 12 gauge cylinder bore barrel.

Anybody know what size RB these like with a ~.015 patch?

Looking at the prices of these big RB's makes me wish I could find a few samples of balls that should be close.   Any ideas?

If you have a New Englander, all the better...let me know what works in yours please!

Thanks, Skychief.

Offline ridjrunr

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« Reply #1 on: April 30, 2010, 02:21:46 AM »
I,m shootin a .715 ball and its a good snug fit. Really havent been able to dial it in like I want but havent given up either.
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Offline Fletcher

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« Reply #2 on: April 30, 2010, 07:06:51 PM »
I shoot 9 or 10, .310 rb with a powder and shot cushion then a shot wad on top.

Great medicine for whatever is downrange!
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Offline jbullard1

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« Reply #3 on: April 30, 2010, 07:42:23 PM »
I shoot .690's and a denim patch I will send you some if you want them, just pm me your addy
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Offline FG1

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« Reply #4 on: April 30, 2010, 09:04:37 PM »
You should measure bore then deduct your patch thickness twice and that will give ball diameter for that particular bore .
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Offline Skychief

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« Reply #5 on: June 20, 2010, 11:39:24 AM »
Update....I bought some .715's and .010 precut patches at Friendship.   Shot these over 70 grains Goex 2f yesterday.   They loaded great (nice and snug) and my results were very encouraging.   They shot minute of deer ribcage out to 50 yards (which was the farthest I tried).

I am loking forward to tweaking my load and such.   The POI was a couple inches lower than my POA at 25 yards.   This of course was with the single brass bead and no rear sight.   I may have to simply make the bead prouder, or,  maybe a little more powder charge will bring POI to POA.

Thought I would give a quick report.  Skychief.

Online Bigsmoke

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« Reply #6 on: June 20, 2010, 05:17:20 PM »
Years gone by, I had one of those and I shot a .715 with a .010 patch and 90 grains of Ffg.  I had a Lyman peep sight on it and it would cloverleaf in the black at 25 yards.  Pretty sweet shooting gun.
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Offline Skychief

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« Reply #7 on: June 20, 2010, 06:22:28 PM »
Quote from: "bigsmoke"
Years gone by, I had one of those and I shot a .715 with a .010 patch and 90 grains of Ffg.  I had a Lyman peep sight on it and it would cloverleaf in the black at 25 yards.  Pretty sweet shooting gun.

I was impressed with its initial accuracy BigSmoke.   Kinda wondering how well it might do with a little load development.   I will get around to trying the load you mentioned above (thanks!).

I can't wait to see what it will do to a big bodied cornfed Indiana whitetail this year!   That big ball has a lotta "oomph", no matter how fast (or slow) she's going.

Looks like I may be hunting for a .715 mould soon.   It was a lot of fun with the big boomer, I have to admit.

Skychief.

Online Bigsmoke

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« Reply #8 on: June 20, 2010, 07:00:44 PM »
Well, for sheer knock down power, the .715 is going to be boss.
Taylor Knock Out Value is determined by multiplying the diameter x weight x speed and dividing that by 7000.
A .54 rifle at 1,800 fps develops a TKO of 30.66
(.530x225x1800) / 7000

A .715 at 555 grains at only 900 fps = 51.02

Them big round balls really thump when they hit.
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Offline Buzzard

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« Reply #9 on: June 22, 2010, 08:03:15 PM »
My NewEnglander shoots very well with 690's and .018 patching. Roughly 3" groups at 50yds with 90gr of 2f and an over powder card.
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