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Old 01-20-2011, 05:25 PM
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6.5mm-06 Rifle ... aka: 6.5mm-06 A-Square



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The 6.5mm-06 Rifle Cartridge
Quote:
The .30-06 Springfield is the parent case of the .25-06, 6.5mm-06 and the .270 Winchester,
_all of which are pretty similar both ballistically and visually.
Had the 6.5mm-06 been commercially adopted first, the other two
_would not have been necessary.

As an alternative to necking-up the .25-06 case is necking down
_the .270 Winchester case and trimming to length.
Whether it is worth owning a wildcat rifle to shoot bullets of the
_same weight that are 0.013" smaller in diameter from the same case
_is the question.
It is hard to see what the 6.5mm-06 wildcat can do that the .270 Winchester cannot.

Being a wildcat, there is no SAAMI MAP for the 6.5-06.
However, the MAP for the .270 Win. is 52,000 cup and the MAP
_for the .25-06 is 53,000 cup.
It would be sensible to keep the MAP of the 6.5mm-06 to similar levels.

It is interesting to note that, comparing data from the Hornady Handbook,
_the top velocities listed for the 6.5mm-06 with 129 and 140 grain bullets
_are 100 fps slower than the top velocities for similar weight bullets in the .270 Winchester.
6.5mm-06 A-Square
Quote:
The 6.5mm-06 A-Square Cartridge started as the wildcat .65-06
_or a 30-06 cartridge that was necked down to 6.5mm =.264" Diameter projectiles.
The case length of the 30-06 A-Square is the same as a 30-06 cartridge,
_but the shoulder is longer and has a 19 degree angle leading to
_a smaller 6.5mm or 264" diameter mouth.

Basically the 6.5-06 A-Square is the proprietary version of the 6.5-06 Wildcat.

Thread:

6.5mm-06 ballistics
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Old 01-20-2011, 07:04 PM
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The 6.5/.264 Repository ... Work In-Progress

As some of you may know, I own a Remington Mountain Rifle DM .260 REM.
During my research of the .260 REM, I learned much about the 6.5 in general.
Overtime, I've become very impressed with the versatility and capability of the .264.
And, by extension I've become an advocate for 6.5mm/.264 cartridges.

As such, I wanted a thread to consolidate the information and links I've accumulated.
For certain ... changes, additions and updates will be forthcoming.
Also, this is not a comprehensive list of all 6.5 calibers.

To begin with, only contemporary cartridges that are currently in-use were included.
For some, factory ammunition is readily available ... 6.5X284 Norma or 6.5x47 Lapua.
Or, constituent components can be found off-the-shelf ... 260 REM AI.

In hindsight, I overlooked the 6.5-06 ... the oversight was not intentional.
Simply, I've not encountered much information or discussion of the 6.5-06.
However, a Place Holder has been established.
In time, I might try to fill the post.
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Ever-Onward ... Through the Fog ---- Fort Stockton TX 79735
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Old 03-31-2013, 07:42 PM
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Centerfire Extended Comments and Opinions

Savage Firearm Technical:
Savage Actions


Savage Centerfire Rifles:
SAVAGE: Need Something Special ... Not Off-The-Shelf?
Savage 112 BVSS 6.5X284 ... Competition
Savage Model 25:
Savage Model 25 Derived From Savage Model 40
Savage Model 25 Lightweight Varminter Series
Savage Model 25 Classic Sporter .223 Rifle ... Model 25 vs CZ 527


Firearm Technical:
6.5x55 Swiss ... Mid Length Action

Other Centerfire Rifles:
Legacy Sports International ... Howa ... Vanguard
This is America - Darn't ... It's A Matter of Choice ... My Mountain Rifle

Mountain Rifle: 3-Shots ... Cool Down ... Repeat

Winchester '94 vs Marlin 336

Rifle Ammunition and Cartridges: Technical
Sectional Density ... Ballistic Coefficient

Rifle Ammunition and Cartridges:
The 6.5mm Overlooked in America
The Overlooked 6.5mm for Long Range Shooting
6.5 Creedmore Addresses the OAL Limitations of the .260 REM
6.5x55 vs .260 REM vs 6.5 Creedmoor
Problems With Super Long VLD Bullets
.260 REM vs .270 WIN
5.56 NATO vs .223 REM ... There is an Important Difference


Pistol Technical
Combat or Service Pistol ... Sight Picture
Pistol Ammunition and Cartridges
__________________
W. Edwards Deming ... Quality: It is not enough to do-your-best;
you must know what-to-do, and ... then ... do-your-best.
Ever-Onward ... Through the Fog ---- Fort Stockton TX 79735
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