Sierra 6mm 110gr. HPBT Matchking

kombayotch

kombayotch

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Sierra has released a new 6mm Matchking.

https://www.sierrabullets.com/store/product.cfm/sn/1575/243-dia-6mm-110-gr-HPBT-MatchKing

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358Rooster said:
Very nice. Now how long until they get to Canada, I wonder? 'Run of the mill' MatchKings are hard enough to find. Maybe they'll place more emphasis on pushing the new stuff....?
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So true! SMKs are my bullet of choice but they have been harder and harder to find over the last couple of years. Hopefully they start moving more of everything with these new release bullets.
 
The Sierra bullet supply is one of the largest and strongest... You just have to ask the right supplier.

These new 110's look very interesting if you have a fast enough twist. not sure how many are going to build rifle specific to this end of the 6mm bullet weight. Would certainly be interesting in a mid/larger case.

FYI, although listed on the Sierra website, they aren't listed in my Sku codes. maybe by Jan but happy to take names for those interested in supply once they actually get made.

Jerry
 
Mystic Precision said:
These new 110's look very interesting if you have a fast enough twist. not sure how many are going to build rifle specific to this end of the 6mm bullet weight. Would certainly be interesting in a mid/larger case.



Jerry
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Most popular 6mm chamberings are using at least an 8 twist and the most popular projectiles are the 105 hybrids and 115 dtac's, so this is certainly not unexplored territory...
As for building a rifle for them, every prs style 6mm build previously done, or about to be done is going to be appropriate.
 
Sierra is rating these for a 7 or faster twist. Of the Sierra bullets I have tested recently, I find their twist ratings to be appropriate especially when reaching out towards distances where bullets approach transonic speed.

But there will be only 1 way to find out....

Give me a shout if you want to preorder these bullets.

Jerry
 
Mystic Precision said:
Sierra is rating these for a 7 or faster twist. Of the Sierra bullets I have tested recently, I find their twist ratings to be appropriate especially when reaching out towards distances where bullets approach transonic speed.

But there will be only 1 way to find out....

Give me a shout if you want to preorder these bullets.

Jerry
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Yeah for sure, I'd be in for a few hundred to try out.
I think their twist rating is just following the general trend of going to 7 twists for 6mm. Doesn't seem to be anything to their design that necessitates it per say.
 
I am sure testing will prove the point when these Sierras become available.

I will update this post when I see a sku code... hopefully, this is not a SHOT show pre announcement with supply to follow in the summer???

Happens all too often.

Stay tuned.

Jerry
 
Interesting...

Since Sierra makes the 115 DTAC for Tubs, they are staying just out of the 115 range with this new bullet.

I wish they'd just work out a deal with Tubbs and sell the 115s directly.

The long geometry of this bullet is uncharacteristic of Sierra as they are traditionally much more conservative and favour accuracy geometry over BC geometry.

To have the BC they claim... which I do not believe BTW... this is a very long bullet that seems similar to some of the JLK high BC stuff that I could never get to shoot accurately.

Its good to push the limits of BC with aerodynamic designs, hopefully we can find a throat angle that likes such an aggressively shaped bullet.
 
They do say that they work with the "same 1.5 degree angle commonly found in many match chamber throats." These are a 27 caliber ogive; any idea what the JLKs and the Berger VLDs and Hybrids use?

I agree, the B.C. does seem like a bit of a stretch.
 
Even now Tubbs officially states .620 BC for his 115 grain DTAC but years ago privately agreed over the phone with me that it was really about .535 based on my velocity and drop finding at 1000 yards... Which agreed with his.

For the 110 grain to have an honest BC of .610 is a total stretch.... I'd figure it to play out under .520 in practice, which is still not bad... but I hope its better than that.
 
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BadAsMo said:
Even now Tubbs officially states .620 BC for his 115 grain DTAC but years ago privately agreed over the phone with me that it was really about .535 based on my velocity and drop finding at 1000 yards... Which agreed with his.
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0.620 if for the new RBT DTAC (just released). It has a longer, sleeker ogive with a smaller metplat and rebated boat tail. 0.535 was for the old DTAC before they started pointing them. The ones from recent years were all pointed at the factory and a BC of 0.585 tracked. I've fired thousands of those out to 1200+ yards out of my 6mm Crusader...
 
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