7x46mm ARC
- Thread starter KM375
- Start date
Re: 7x46mm ARC
Its an intermediate cartridge 7x46 UAIC or ARC designed by a USAMU guy without any restraints, it is supposed to be an intermediate round that will cover the infantry half Kilometer. It is supposed to be a cartridge that fits the bill between the 5.56 and 7.62 better ballistics than the 6.8 spc, 6.5 Grendel, 5.56, and 7.62.
http://www.m4carbine.net/showthread.php?t=19936
Its an intermediate cartridge 7x46 UAIC or ARC designed by a USAMU guy without any restraints, it is supposed to be an intermediate round that will cover the infantry half Kilometer. It is supposed to be a cartridge that fits the bill between the 5.56 and 7.62 better ballistics than the 6.8 spc, 6.5 Grendel, 5.56, and 7.62.
http://www.m4carbine.net/showthread.php?t=19936
Re: 7x46mm ARC
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Wild_Bill</div><div class="ubbcode-body">how about a 6.8 SPC? necked to 7mm
</div></div>
6.8 was designed by the same guy, but with the constraints that it had to fit in existing ARs the 7X46 ARC is not held to those restraints.
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Wild_Bill</div><div class="ubbcode-body">how about a 6.8 SPC? necked to 7mm
</div></div>
6.8 was designed by the same guy, but with the constraints that it had to fit in existing ARs the 7X46 ARC is not held to those restraints.
Re: 7x46mm ARC
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Wild_Bill</div><div class="ubbcode-body">how about a 6.8 SPC? necked to 7mm
</div></div>
This was done during the development of the 6.8. The 7mm proved to have better terminal ballistics but a mediocre trajectory. The 6.8 was chosen as a compromise between terminal performance and trajectory. I personally like the 7X47(6) idea, it's just that there is no intermediate sized platform on the market. And if I'm going with a .308 sized action I may as well get a .308, 7mm-08, or 6.5Creedmore. LWRC was showing off a proprietary lower designed to take Polymer 6.8 mags, that lower or somethin similar may be the answer if we can get an extra .18-.22" in overall length in the mag.
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Wild_Bill</div><div class="ubbcode-body">how about a 6.8 SPC? necked to 7mm
</div></div>
This was done during the development of the 6.8. The 7mm proved to have better terminal ballistics but a mediocre trajectory. The 6.8 was chosen as a compromise between terminal performance and trajectory. I personally like the 7X47(6) idea, it's just that there is no intermediate sized platform on the market. And if I'm going with a .308 sized action I may as well get a .308, 7mm-08, or 6.5Creedmore. LWRC was showing off a proprietary lower designed to take Polymer 6.8 mags, that lower or somethin similar may be the answer if we can get an extra .18-.22" in overall length in the mag.
