Is 2018 The Year Of The Heavies?
As I am sure many of you are aware Sierra has brought some new products to the precision rifle world. Listed above are their new bullets available. Designed specifically for match shooting these bullets are heavier then most common offerings available currently, but is heavier better? Lets find out.
The Fan Favorite: The 6.5 Creedmoor
While Sierra is offering quite a few new bullets today we will be reviewing their new 6.5mm (.264) 150 GR HPBT as it relates much closer to Practical Precision shooting (our focus). In particular we will be looking at the 6.5 Creedmoor loaded with the 150 GR Matchking and comparing it to other popular loads.
At the time of this being written my 6.5 Creedmoor barrel is still a solid rod. In lieu of real data collected from my rifle we will use available published reloading data from a number of sources.
Here is the subject of this article
A key thing to consider is the required twist rate. Most factory rifles chambered in the 6.5 Creedmoor offer a 1:8 twist. It can be fired from a rifle without a 1:7.5 twist or faster, but will likely not take advantage of the full BC of the bullet.
Published data for the 150 GR Matchking shows a G1 BC of .713 at 1760 FPS and above. While we usually prefer G7 for ballistics comparison that data has not been published as of yet. Based off of the reloading data provided by Sierra we will use 2700 FPS as the muzzle velocity. This data is based off a 24″ barrel.
All ballistics calculations are run at a DA of 0 with 10 MPH winds at 90 degrees. All data is provided by the Applied Ballistics mobile application.
Hornady 147 GR ELD Match
Up until the release of the Sierra 150 GR HPBT Matchking the 147 GR ELD Match was the heaviest available match round for the 6.5 family. It has a AB verified G1 of .654. Copper Creek Cartridge offers loaded 147 GR ELD Match ammo and from a 24″ barrel it produces 2725 FPS.
Berger 140 GR Match Hybrid Target
A tried and true favorite that has existed before the new Hornday ELD series the hybrid target offers impressive results. It has a AB verified G1 of .607. Copper Creek Cartridge offers loaded 140 GR Match Hybrid Target ammo and from a 24″ barrel it produces 2820 FPS.
Hornady 140 GR ELD Match
Designed as an improved replacement to the A-MAX line the ELD series offers impressive BC and improved performance at distance. IT has a a AB verified G1 BC of .629. Copper Creek Cartridge offers loaded 140 GR ELD Match ammo and from a 24″ barrel it produces 2810 FPS.
How they all compare
The 150 GR Matchking does offer some improved results based on the estimated numbers but it does leave us with a few questions. Are these results worth having your next barrel cut with a faster twist? Will there be factory offerings? Will rifle manufactures produce their rifles with a faster twist down the line to accommodate the 150’s?
Please comment below or shoot us a message if you have collected hard data with the Sierra 150 GR Matchking.