Six Point Five Creedmoor – it’s not new, but expect to hear and read more about this caliber as the “Department of the Navy Office: Naval Sea Systems Command” is looking to buy MK110K1 uppers from Knight’s Armament Co.
The upper is supposed to fit the M110K1 Semi-Automatic Sniper System (SASS), which can be seen in the picture above.
I quote from the Presolicitation (Source):
Knights Armament Company has offered to the Government an improved, capability upgrade to the upper receiver assembly for the M110K1 Semi-Automatic Sniper System (SASS). The new upper receiver is 6.5mm Creedmoor (versus 7.62mm, CLIN 0001 on current contract) and provides longer distance shots and increased range.
Read those last words again: “provide longer distance shots and increased range“. I find them pretty funny, as there are no facts or specifications attached. I don’t doubt that the 6.5CM is overall better than the 308 Win, but still. You can compare it to the fairly demanding requirements in Sweden’s procurement of a new Multi-Caliber Sniper Weapon System.
The current M110K1 has a 20” (50.8cm) 1:11 тwist barrel. I cannot find any information about which barrel length the new KAC 6.5 Creedmoor has, but I would expect 22″ to get as much (or more) out of the caliber as possible.
There are no details about which handguard is to be used, or which attachment interface that will be offered. Possibly M-LОК, instead of Picatinny.
A cost-reducing fact is that the new replacement upper can use the existing M110 suppressors. I use a 308 Win suppressor (made by ASE Utra with Quick-Detach) for my 6.5 Creedmoor system, and it works really well.
From Knight’s Armament about their M110 Capability Upgrades:
The Knight’s Armament Company Intermediate Conversion kit will increase effective ranges while maintaining the combat proven durability. Knight’s Armament Company has always been a leader in precision semi-automatic rifles and continues this tradition with the ability to convert to intermediate calibers such as the 260 Remington and 6.5 Creedmoor.
KAC offers several different options to update M110/SR-25 platform to take advantage of the higher velocity and ballistic coefficient of these new calibers. The reduced recoil of the calibers combined with KAC’s unique operating systems result minimal wear on the system and the user. When it comes to real-world application of precision fire at long range, KAC is ready to provide the solution.
For users of the M110, KAC can provide a simple, low cost/high benefit conversion to intermediate caliber. A replacement barrel assembly, complete with E2 bolt and gas system, can be installed into the M110 at the 2nd echelon maintenance level, and requires no other parts conversion or alteration. The replacement barrel can reuse the existing M110 suppressor, aiding in system cost reduction. In-house function and precision testing ensures that the user is receiving the performance advantage of intermediate calibers. This conversion kit immediately improves the long-range capability of the user while maintaining the appearance of a standard issue M110.
The modular nature of the M110 and SR-25 series of rifles and carbines has always permitted mission-specific performance alteration by simply changing upper receiver assemblies. KAC can provide complete and tested drop-on intermediate caliber upper receiver kits with the ability to perfectly match performance to requirement. These kits provide optimal opportunity to upgrade existing platforms with a wide swath of other enhancers such as collapsible stock kits, improved BUIS, QDC and/or DSR suppressors, improved trigger options, enhanced modular selectors, and a full catalog of MIL-STD-1913 and M-LOK accessories.
Hopefully, in the long run, this will also mean lower prices for 6.5 Creedmoor for sports shooters and competitors.
Sources: FBO.gov and Knights Armament Co.