High BC 270.... Only in Canada!!!!!!

O

Obtunded

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I had a note from one of Canada's best kept secrets, Marshall Ambrose of Matrix Bullets. He has started producing 168 and 175 grain bullets in 6.8mm (.277 cal).

This is really epic news. The BC is close to those found on heavy 7mms. Not only is the venerable 270 now a potential long range contender, it also paves the way for such wildcats as a 270-284. It also means the 270 WSM with its excellent long neck could be a fantastic (albeit short-life) 1000 yard contender.

I am not sure where he is at with his 6.8's production-wise, but I defintely suggest giving his outstanding bullets a try, and you can order right off his website.
 
Marshal makes an awesome bullet and is a fine guy to deal with.
I hate shooting against him cause he kicks my butt ! :(
Looking forward to trying those 270 bullets and I know this is not the correct forum, but he makes a wicked hunting bullet for those interested....

That reminds me, he promised to will me the winch bumper off his truck.. :)
 
I have used both his 107 and 117 grain 6mm bullets and they ROCK!! They are not a seating depth sensitive design, yet seem to have (in the case of the 107) a BC around .530 and .520, making them as good as the Berger VLD hunting/match bullet. The 117's were a bit rough at first, but he has refined those and they are amazing in a 6XC. The new 117's rival the Berger 115's and of course, his 190 grain 7mm's are giving the hard-to-find Berger 180 in 7mm a run for its money.

I received some of the 6.8 bullets today and will do a barrel twist calculation. suspect the standard 10" twists on factory guns will not be enough, but I am already giving SERIOUS thought to a 6.8-284 or a 270AI.

Barrel life will be better than the 6.5-284 and his bullets are univerally less seating depth sensitive.

...did I mention these are MADE IN CANADA?!?!?!?
 
Obtunded said:
I have used both his 107 and 117 grain 6mm bullets and they ROCK!! They are not a seating depth sensitive design, yet seem to have (in the case of the 107) a BC around .530 and .520, making them as good as the Berger VLD hunting/match bullet. The 117's were a bit rough at first, but he has refined those and they are amazing in a 6XC. The new 117's rival the Berger 115's and of course, his 190 grain 7mm's are giving the hard-to-find Berger 180 in 7mm a run for its money.
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Hmmm...I could be wrong but the BC of the 6mm Matrix 107 seems to exceed that of the berger according to their website @ 0.5946 which temps me to try some of these bullets. 11% better BC.

Caliber Inches: .243
Weight, grains: 107.0
Core Density, lb/ci-in: 0.4097
Core Weight, grains: 75.5
Jacket Density, lb/ci-in: 0.32
Jacket Weight, lb/ci-in: 31.5
Ogive Radius, calibers: 13.0
Meplat Diameter, inches: 0.07
BC: 0.5946
Click to expand...
 
Heck yeah, I'm waiting for a heavy 6.5mm to use in a 264 win turn neck that I built when I still thought belts were cool...... This bullet would be amazing for a LR hunting round with an Ultra mag case.
 
Obtunded said:
I had a note from one of Canada's best kept secrets, Marshall Ambrose of Matrix Bullets. He has started producing 168 and 175 grain bullets in 6.8mm (.277 cal).

This is really epic news. The BC is close to those found on heavy 7mms. Not only is the venerable 270 now a potential long range contender, it also paves the way for such wildcats as a 270-284. It also means the 270 WSM with its excellent long neck could be a fantastic (albeit short-life) 1000 yard contender.

I am not sure where he is at with his 6.8's production-wise, but I defintely suggest giving his outstanding bullets a try, and you can order right off his website.
Click to expand...

So, in other words he answered a question nobody was asking. Even if he has successfully done so, who cares? What next, match grade .35's?
 
2bad4u2 said:
So, in other words he answered a question nobody was asking. Even if he has successfully done so, who cares? What next, match grade .35's?
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Its just a good option for a guy that has a 270 or 270WSM and wants to shoot long range with it. Not everybody has money lying around for a second rifle.

But the BC is high enough that many will want to try them as well. I have a long action rifle that needs a barrel and this could be a great caliber choice now. I have always loved the 270 for hunting and now if I can shoot LR with it than it will be great!
 
There is a world of difference between a 6.5mm and a 7mm in terms of the cartridges needed to achieve high performance. Right now, the F-Class Open field is dominated by heavy 7mm's. This means you pretty much have to shoot a magnum, or else use a non-magnum case at red line. Thise are damned finicky to make work.

Achieveing 180 Berger-like ballistics from a smaller bullet means that you DON"T need a magnum. It means that you'll get better barrel life and better performance than any 6.5mm bullet, in many instances using the same case.

6.8-08AI, 270, 270AI. 6.8-284 non magnum, and most can use short actions to boot.

It was indeed a question that has been asked by long range shooters for a long time, and it has been ignored by the Big US bullet makers who are driven by market, not innovation.

Another issue facing Canadian long range shooters is the rumblings from the military about acceptable calibers and templates. Going bigger is not the answer.

The technical issue now is getting 277 barrels with enough twist, but that is not a biggie.
 
2bad4u2 said:
So, in other words he answered a question nobody was asking. Even if he has successfully done so, who cares? What next, match grade .35's?
Click to expand...

We will care if the US puts a ban on components used in military equipment.

These bullets, although ubber interesting, will run into issues with barrel makers. precious few will make 8 twist barrels which these heavies will likely need.

forget about your generic 10 twist stabilizing these heavies.

The biggest advantage to any super high BC bullet in a smaller cal is recoil reduction. That's it.

Bore life will be similar.

so a smaller bore will use a smaller case to push their heavies to the same speed BUT will wear at pretty much the same rate as the larger cousin.

6XC = 260AI = 270 = 7RSAUM = 300WM. But the recoil grows way more.

Jerry
 
mysticplayer said:
We will care if the US puts a ban on components used in military equipment.

These bullets, although ubber interesting, will run into issues with barrel makers. precious few will make 8 twist barrels which these heavies will likely need.

forget about your generic 10 twist stabilizing these heavies.

The biggest advantage to any super high BC bullet in a smaller cal is recoil reduction. That's it.

Bore life will be similar.

so a smaller bore will use a smaller case to push their heavies to the same speed BUT will wear at pretty much the same rate as the larger cousin.

6XC = 260AI = 270 = 7RSAUM = 300WM. But the recoil grows way more.

Jerry
Click to expand...
Umm, Pac-nor, Krieger, Douglas, Lilja, Border, all make an 8 twist .270 barrel
 
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