NEW — Ultra-High BC 150-Grain 6.5mm MK from Sierra
Up until now, 147 grains was the high end of 6.5 mm (.264 diameter) match bullets offered by major bullet-makers. Now Sierra has “raised the bar” — releasing a 150-grainer with a killer 0.713 G1 Ballistic Coefficent (BC). You read that right — 0.713! Compare that to the 0.626 G1 BC for Sierra’s well-known 142gr MatchKing, 0.697 for the Hornady 147gr ELD Match, and 0.607 for the Berger 140gr Hybrid Target. To increase (and uniform) the BC, Sierra’s new 150-grainer is pointed at the factory. Recommended barrel twist rate is 1:7.5″.
CLICK HERE for 6.5 Creedmoor LOAD DATA for this new 150gr Matchking.
Sierras’ product announcement states: “Shooters … will appreciate the accuracy and extreme long range performance of our new 6.5 mm 150 grain HPBT (#1755). A sleek 27-caliber elongated ogive and a final meplat reducing operation (pointing) provide an increased ballistic coefficient for [reduced wind drift] and velocity retention. To ensure precise bullet-to-bore alignment, a unique bearing surface-to-ogive junction uses the same 1.5-degree angle commonly found in many match rifle chamber throats. This bullet requires a twist rate of 1:7.5″ or faster to stabilize.”
Sierra’s new 6.5 mm 150 grain HPBT MatchKing bullet is available in 100-count boxes (#1755) for $50.98 MSRP, and 500-count boxes (#1755C) for $226.45 MSRP.
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Tags: .264 Bullet, 150 grain MK, 150gr, 6.5 Creedmoor, High-BC 6.5 mm, PRS, Sierra Bullets, Sierra MatchKing, SMK
Nice touch by adding 6.5 Creedmoor load data right away!
Thanks, Frank
Bartlein Barrels
Have we forgotten the 155 grain Sierra Matchking already?
That failed for being too heavy for caliber and having too long a bearing surface.
With the date being 10-13 I had to double check this article but its legit. Ye I am going to try this in my 6.5×47. 2750fps is plenty of speed for me. All the nay sayers need to remember that the 308W is underpowered too but plenty of us run 200gr bullets in them.
Will a 1-8 twist barrel stabilize these ? I have seen they say 1-7.5 or faster . Really keen to give them a try if they send them to Aussie land
“Underpowered” is relative. Many of us want a load that is 1) consistent 2) stays supersonic to 1000 yds 3) minimizes ind drift 4) has manageable recoil for long Shooting strings and ease of following bullet trail 5) decent barrel life. When you add all 5 of those factors, what is “underpowered”? I would say a 6BR with 105 gr @ 2850 is not underpowered. Nor is a 308 with 200 gr @2600. I would say they are just about right!
Jonathan I have to steel this.
Tsk…tsk…tsk. @ Richard . My .308 likes the 155 SMK Palma quite well . Getting my fair share of X’s with them on a regular basis . And working on the 175TMK & 195TMK loads at present .
And BTW ; My rifle doesn’t like any Berger bullet I’ve tried in it yet . I’ve got boxes of partials in my cabinet…And I’ll keep trying to make them viable till they’re gone . The “Flavor of the Month”, ain’t always !
Just because a certain brand of bullet doesn’t work in some guns , doesn’t make it a rotten bullet .
What is the length of this bullets (6.5 150 grs MatchKing)?
I want to run it though a barrel twist rate calculation in order to calculate what the stability factor will be if used in a 1:8 twist rate barrel.
Has anyone tried this in 26N? I’m having one custom made, but the barrel I have is 1:8. Given that it’ll be around or over 3000fps is it possible these would be stabilised well enough?
Any input would be fantastic, thanks!
I’m pushing these [well over 2850 fps] in my Creedmoor with Reloder 19 (literally a full case), but found a SD of just under 4 with a 9fps ES with Superformance. These will stabilize out of an 8 twist if you’re pushing them over 2800 fps. Length is 1.5″. Accuracy for me has been outstanding. Now if I could get some more of them….
Any load data for 6.5×55 swede?