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244 vs 6mm
trapman69
Member Posts: 32 ✭✭
Looking for info on the differences in these Cal's.
Which is more accurate? Which drops more? Or are they pretty much the same? Thanks in advance for any help. Tom R
Which is more accurate? Which drops more? Or are they pretty much the same? Thanks in advance for any help. Tom R
Comments
The cartridges themselves are the same, and are interchangable.
These two cartridges are exactly the same except for the name change and a twist rate change in the rifles. Being the same, there is no advantage to one over the other in any way except for the 6mm ability to handle the longer, slightly heavier bullets with the faster twist rate.
This is a good synopsis of the history:
6mm Remington (244 Remington)
It has been said on more than one occasion that when Remington engineers were developing the .244, their primary objective was to come up with a high performance varmint cartridge and for this reason decided to go with a maximum bullet weight of 90 grains. This isn't exactly true. Instead, after extensive testing of many bullet weights, it was decided that optimum weights for the .257 Roberts case necked down to 6mm were 75 grains for varmints and 90 grains for deer. A rifling pitch rate of 1-12" proved to be the best compromise. The rest, as they say, is history.
For reasons that no one can explain (or prove), deer hunters decided that the .243 Winchester with its 10 more grains a bullet was a better choice. Or at least this is the traditional explanation. Possibly a factor even of greater influence was the rifles the two cartridges were available in. The .244 was offered in the Model 722, a rifle about as handsome as a fence post. The .243 was available in the sexy little Model 70 Featherweight. When it came to looks, there was no contest.
Around 1958, Remington started rifling all .244" caliber barrels with the 1-9" twist, but nobody seemed to notice. In 1962 when the new Model 700 rifle was introduced, the only 6mm cartridge it was available in was the .243 Winchester, but during the next year the .244's name changed to 6mm Remington and reintroduced in the Remington bolt action.
While Model 722 and 725 rifles with 1-12" twists will stabilize 100 and 105 grain round nose bullets, they usually prefer 95 grains or less when loaded with spitzers. Since Remington dropped the 90 grain 6mm factory load, those who hunt deer with the early 722's have no choice but to handload. Later .244 Remington rifles with 1-9" twist will handle the 100 grain factory load.
Source: Hodgdon Data Manual, 26th Edition
Best.