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Offline Jim Flinchbaugh

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Question for 7mm-08 Handi owners
« on: March 04, 2012, 04:57:25 AM »
For those of you that have one, has anyone slugged the barrel?
I'm looking at a group buy mold on castboolits, I don't own my 7mm-08 yet, its still on layaway so I cant slug it.
I realize there is going to be a certain amount variation from barrel to barrel.
The mold in question has a bore rider diameter of .277"
So, whats your bore diameter?
 TIA
Jim
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Offline petemi

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Re: Question for 7mm-08 Handi owners
« Reply #1 on: March 04, 2012, 11:35:32 AM »
.277 is .270 caliber.  7mm is .284.
 
Pete
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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 quickdtoo

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Re: Question for 7mm-08 Handi owners
« Reply #2 on: March 04, 2012, 11:40:59 AM »
Pete, the SAAMI spec for the 7mm-08 bore diameter(lands) is .277",  groove diameter is .284", tolerance is +/- .0005" for both.  ;)

Tim
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Offline gendoc

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Re: Question for 7mm-08 Handi owners
« Reply #3 on: March 04, 2012, 11:44:17 AM »
Quote from: quickdtoo on March 04, 2012, 11:40:59 AM
Pete, the SAAMI spec for the 7mm-08 bore diameter(lands) is .277",  groove diameter is .284", tolerance is +/- .0005" for both.  ;)

Tim
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Offline petemi

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Re: Question for 7mm-08 Handi owners
« Reply #4 on: March 04, 2012, 11:53:59 AM »
My bad.  I thought he was casting .277 dia bullets. Perhaps I should take some remedial reading courses ;D :o ::)
 
Pete
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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
[size=7.4 pt]PLEASE DONATE TO THE GBO SERVER FUND  We're closer to the goal but not there yet, we can still use more donations, thanks

http://www.gboreloaded.com/forums/index.php/topic,191112.msg1098959491.html#msg1098959491

Offline quickdtoo

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Re: Question for 7mm-08 Handi owners
« Reply #5 on: March 04, 2012, 12:05:37 PM »
Pete, bore rider bullets are smaller in diameter up front than the shank of the bullet so when the round is chambered the forward section of the bullet is actually riding in the lands before it's fired, only the rear section of the bullet is groove diameter,  that's why Jim wants to know if the 7mm-08 will chamber a .284" bullet that has a .277" bore rider profile.  ;)

Tim
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Offline r29l20

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Re: Question for 7mm-08 Handi owners
« Reply #6 on: March 04, 2012, 12:22:57 PM »
That's what I was thunk'in. :o . ????
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Offline Jim Flinchbaugh

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Re: Question for 7mm-08 Handi owners
« Reply #7 on: March 04, 2012, 01:29:34 PM »
Quote from: quickdtoo on March 04, 2012, 12:05:37 PM
  that's why Jim wants to know if the 7mm-08 will chamber a .284" bullet that has a .277" bore rider profile.  ;)

Tim

Eggzactly!
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Offline quickdtoo

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Re: Question for 7mm-08 Handi owners
« Reply #8 on: March 04, 2012, 02:04:10 PM »
Jim,

I got a brainstorm and dropped a .277" bullet down the bore of one of my 7mm-08s, it dropped right thru, measured it and it was .276"  :-\, tried all six that I have and they all measure .276" with my digital caliper!   ??? So that wasn't much help, so I found a small egg sinker and slugged one of the barrels at .277", not micrometer accurate, so accuracy is questionable considering the SAAMI tolerance and all. Prolly doesn't make much differnce what my barrels slug, each barrel is different and will depend on when a barrel is made and how old the tooling is when it's made, it could have a .2755" bore or .2765" or anywhere in between. 

Tim
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Offline Jim Flinchbaugh

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Re: Question for 7mm-08 Handi owners
« Reply #9 on: March 05, 2012, 04:12:19 AM »
quickdtoo,
thank you this is what I was needing to know. My 280 rem barrel measures exactly .277 & .284, but that barrel cost more than
an entire handi  ;D and is on a custom Mauser 98.

I'm going to order the mold, cause I can use it in the Mauser, and, I'm sure I will be able
to make it work in the Handi, especially considering, I just ordered "The Paper Jacket"  8)
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