Has anyone had any thought or experience building a long rifle to use the Matrix .277, 165vld or 175 vld hunting bullets. They list the BC's at .7389 and .7828 respectively, from what I have read it looks like a 1:9 twist barrel would be required to reliably stabilize these bullets. I'm thinking a 270 WSM might be a good caliber choice or maybe a 270 weatherby. What are your thoughts? Hopefully I've got this in the correct forum.
270 cal. Matrix 165 & 175 VLD's for long range precision
- Thread starter hawk-i
- Start date
How sure are you of Matrix's BC claims?
Bryan Litz only has data on the Matrix 150 gr RBT and it doesn't agree with what Matrix has to say.
Just saying.
I've shot hundreds of Matrix Ballistics 165gr Hunting VLD in my 270 WSM.
They are extremely accurate under normal conditions (15C , sea-level) and will stabilize in a standard 1-10" twist barrel but won't stabilize in colder temperatures (read 5C, sea-level).
The longer 175gr Hunting VLD need a custom 1-9" twist to stabilize even under normal conditions.
It looks like that the actual BC is roughly 10% lower than the calculated static BC.
Both 165gr and 175gr Hunting VLD have been use successfully at long range hunting (go see on longrangehunting.com).
After shooting them for 1 season, I quit on 270WSM with 165gr VLD at 2900fps because of too much recoil and muzzle blast. I'd rather shot a 115gr 6mm VLD or a 142gr 6.5mm VLD and no beat myself senseless.
Great bullet, great cartridge, to much recoil in the kind of rifle that I like to shoot.
Alex
They are extremely accurate under normal conditions (15C , sea-level) and will stabilize in a standard 1-10" twist barrel but won't stabilize in colder temperatures (read 5C, sea-level).
The longer 175gr Hunting VLD need a custom 1-9" twist to stabilize even under normal conditions.
It looks like that the actual BC is roughly 10% lower than the calculated static BC.
Both 165gr and 175gr Hunting VLD have been use successfully at long range hunting (go see on longrangehunting.com).
After shooting them for 1 season, I quit on 270WSM with 165gr VLD at 2900fps because of too much recoil and muzzle blast. I'd rather shot a 115gr 6mm VLD or a 142gr 6.5mm VLD and no beat myself senseless.
Great bullet, great cartridge, to much recoil in the kind of rifle that I like to shoot.
Alex
Matrix
I scored for the fellow from Matrix on Sunday at the first F-Class match at Mission he was shooting a .270 bullet in a necked down .308 case , its an incredibly accurate round , He dropped 1 point in the first string , Two in the second and shot clean in the third , i forget how many Vee's he shot i kinda lost count , so from what i witnessed at the match his .270 bullet is extremely accurate. No sure how he placed in F-Open , i left early
I scored for the fellow from Matrix on Sunday at the first F-Class match at Mission he was shooting a .270 bullet in a necked down .308 case , its an incredibly accurate round , He dropped 1 point in the first string , Two in the second and shot clean in the third , i forget how many Vee's he shot i kinda lost count , so from what i witnessed at the match his .270 bullet is extremely accurate. No sure how he placed in F-Open , i left early
Remington 700 CDL SF with the barrelled action set in an Accuracy International AICS stage 2.0 stock.
The complete rifle with scope weighted around 12.5-13 pounds.
Even shooting 135gr Sierra MatchKing at 3200fps with it caused fatigue.
Alex
Matrix .277 bullets are excellent,
http://www.canadiangunnutz.com/forum/showthread.php?t=644538&highlight=matrix
I shot them last year a provincial and US match, I had no problems out to 1000 yards, I plan to shoot them as well this coming season. I have not tired the 165's but the 175's do very well at ~3000 fps
http://www.canadiangunnutz.com/forum/showthread.php?t=644538&highlight=matrix
I shot them last year a provincial and US match, I had no problems out to 1000 yards, I plan to shoot them as well this coming season. I have not tired the 165's but the 175's do very well at ~3000 fps
Pathfinder
CGN Ultra frequent flyer
- Location
- Northeast Ontario
ive got some matrix 165's and 145's loaded in 270 win to try in my vanilla 270..just need the time to shoot them now.
Pathfinder
CGN Ultra frequent flyer
- Location
- Northeast Ontario
I was told the opposite (by the guy who makes them and shoots them) and I think Alex confirmed this earlier in this thread.
Well they did stabilize at 25C almost sea-level, 2850fps in my 1-10" 270 WSM Remington!
And according to JBM Ballistic Calculator (bullet stability), the bullet is just barely stable under these conditions (just asking for trouble).
In short, Berger's 270 150 gr Match Grade VLD Hunting is the heaviest bullet high BC (it's a non-VLD bullet) that will always be accurate in a 1-10" twist barrel.
Alex
rnbra-shooter
CGN Ultra frequent flyer
- Location
- New Brunswick
I have a box of the .277" 165s here which I will be testing shortly (hopefully within the next month). I don't own a .270 so I'm going to have to borrow a rifle. I'll try to test them out of a 1-10" twist, and see how(if) they work. Will also be able to report a BC on them, once I get the testing done.
You should ask Marshall at Matrix Ballistics but I know that some 270 175gr VLD shooters use custom 1-8.5" twist barrels.
If you're curious you can punch some number in JBM Ballitics Stability Factor calculator.
The 165gr Hunting VLD Length is 1.418
The 175gr Hunting VLD Length is 1.505
For velocity, any 270 WSM will drive the 165gr VLD at 2850+ fps.
http://www.jbmballistics.com/cgi-bin/jbmstab-5.1.cgi
Alex
