We done some range testing this week Bill and I with the 190 Gr Matrix
bullets I received from Benchmark.
We used Bill's F-Class rifle 30 inch 7mm 9 twist barrel, chambered 7mm
RSAUM loaded 66.5 Gr AR2225 (Retumbo) powder cci mag primer.
On Saturday at 600 Yards and 1000 yards we fired 10 shots at each
range recording the exact elevation settings. The groups were very
To day we went back a fired through my new Oehler P35 chronograph two
strings of ten shots at 300 yards.
10 shots groups measured 1.250" & 1" at 300 yds. Measured over the 20
shots the elevations were well under half an inch. Wind was varying
from 12 MPH to zero, no wind adjustments were being made between
Average velocity was 2970 FPS with a mean spread of 5 FPS.
Bill ran the data collected through the Ballistic soft ware and we
came up with the following two BC's
@ 600 yards BC = .78
@ 1000 yards BC = .77
Matrix claim .807 but hard to belive when visibility check over the
projectile witnessing a rather open tip on the meplate point. Boat
tail looks the goods.
Summing up .77 BC @1000 yards is bloody awesome from this 190 Gr
bullet nothing even gets close. One would have to to go to a 338 Cal
bullet on a large cartridge to equal or surpass it.
I am going to get more 190 grain Matrix bullets for Bill to shoot the
next state Long range F-Class titles. Shot over 1000 yards, 1100
yards, &1200 yards.
As a hunting bullet fired from a 7mm Dakota cartridge this would be
the round unlike other big long VLD projectiles the lead has been
kept back out from the point end of the projectile this enabling it to
stabilize in 9 twist barrels others we have tested have lead up to the
tips which have not stabilized in 9 twist barrels.
Within the next few weeks hoping to get some good film footage and
photo's of some Aussie game brought down by the 190 Gr Matrix. With
the open tip containing no lead this bullet will open up like like a
sun flower on large game.
Keep you up to date.