That will undoubtedly change, but not overnight. The case capacity of a 6mm AR is about 36 gr. [5], The cartridge makes use of 6mm (.243 in) bullets, which are known for their high ballistic coefficients due to the high sectional density with less drag and better energy retention at extended ranges. The Hornady 6mm ARC takes the 24-caliber into record territory the slowest muzzle velocity of any commercial cartridge propelling .243 bullets. Available in different sizes and red dot ready, it'll fit your needs, whatever they are. Todays fast-twist .223s and heavy bullets have made it effectively obsolete. Top loads used H322, W748, and Reloder 7 powders with 65-, 68-, and 75-grain match bullets. [7] What the 6mm ARC does offer though is almost comparable velocities and ballistic performance, but out of a compact cartridge that has lessened perceived recoil and fits into the standard AR-15 length actions. Clearly better to galivant around the countryside with then an AR10. If the wind is changing from 4 -7 miles an hour (and it ususally is), you will have more trouble bracketing or holding the 6BR in the 10 or X ring. 6mm ARC Review : Fad or Viable Cartridge? : Gun University I had three high capacity magazines using white followers, two 17 rounders with green followers. In a 10-mph crosswind the 6mm ARC 108-grain bullet drifts 10.9 inches at 400 yards. Ammo capacity is about the same, 20 rounds with the longer Grendel mags. It is advanced for the AR platform. Many handloaders like the 6mm Rem.s sharper shoulder and longer case, and while its not nearly as popular as the .243 Win., it is nonetheless a great 6mm round. Making those tweaks often feels like creating a powder that doesnt really exist. Hornady BLACK 6mm ARC 105 Grain Boat-Tail Hollow Point Match Centerfire Rifle Ammunition, 20, BTHP Match (Save 10%) $34.99 $1.75/Round. Should I consider another upper? We show you how. While it did well the clear winner was the 6CM, high BC and extra velocity are hard to overcome at this range. Its almost boring. Only a few metric calibers have been really popular in the United States6.5mm and 7mmso the Great 6mms are relatively few in number. I used the lathe to modify a 6.5 Grendel bushing die and ended up with a 6 ARC die. Learn the difference between revolvers and semi-auto pistols and what makes them different. It may not display this or other websites correctly. Thread starter Travis224; Start date Aug 11, 2020; Forums.
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