Archived Posts » 59,646,491
Does anybody use Sierra Infinity Suite 6?
1/12/2012 9:27:22 AM
Need a bit of advice.
1/12/2012 9:28:06 AM
Not me
1/12/2012 9:47:42 AM
Haven't used it in a long time but what advice?
1/12/2012 9:53:54 AM
I'm trying to project trajectories for some RG 62gn surplus. The round is not listed (unsurprising really) so I'm trying to work out what to enter it as. 
There is a Barnes 62gn HPBT, would that have similar properties to RG, or is there a better round to enter to achieve similar results? There is also a generic .224 round, but it's 69gns.
I'm confused.
There is a Barnes 62gn HPBT, would that have similar properties to RG, or is there a better round to enter to achieve similar results? There is also a generic .224 round, but it's 69gns.
I'm confused.
1/12/2012 10:03:06 AM
Use the Barnes at 2850 and it'll get you close enough 
1/12/2012 10:03:25 AM
SS109 62gr - BC 0.325
OR
M16A2
M-885 / 3113 FPS / 59 F / .296 G1 BC
M-193 / 3271 FPS / 59 F / .250 G1 BC
OR
www.hpbt.org/articles/223.doc
OR
M16A2
M-885 / 3113 FPS / 59 F / .296 G1 BC
M-193 / 3271 FPS / 59 F / .250 G1 BC
OR
www.hpbt.org/articles/223.doc
1/12/2012 10:06:27 AM
Buy Ballistic FTE for th iPhone, it has the 62gn SS109 in its library.
Alternatively check the elevations on a M16A2 rear sight g
Coz it has 1moa elevation clicks, is marked for meters and calibrated for that round
I have FTE, tell me what you want to know
Alternatively check the elevations on a M16A2 rear sight g
Coz it has 1moa elevation clicks, is marked for meters and calibrated for that round
I have FTE, tell me what you want to know
1/12/2012 10:21:56 AM
Many thanks for the advice guys.
Mark, I am trying to calculate the adjustments from a 100 yard zero out to 600 yards (in 100 yard increments) for the 62gn RG, with 1/2" clicks on the scope. I'm going to the zero range on Sunday and want to try and get an idea on the adjustment for each range beforehand. I haven't measured yet, but I believe the sight is 2" above the bore.
This is all so I can use my own brand spanking new rifle at the next CSR and not have to borrow yours.
Cheers.
Mark, I am trying to calculate the adjustments from a 100 yard zero out to 600 yards (in 100 yard increments) for the 62gn RG, with 1/2" clicks on the scope. I'm going to the zero range on Sunday and want to try and get an idea on the adjustment for each range beforehand. I haven't measured yet, but I believe the sight is 2" above the bore.
This is all so I can use my own brand spanking new rifle at the next CSR and not have to borrow yours.
Cheers.
1/12/2012 10:36:12 AM
Originally Posted By ACR26:
SS109 62gr - BC 0.325
OR
M16A2
M-885 / 3113 FPS / 59 F / .296 G1 BC
M-193 / 3271 FPS / 59 F / .250 G1 BC
OR
www.hpbt.org/articles/223.doc
SS109 62gr - BC 0.325
OR
M16A2
M-885 / 3113 FPS / 59 F / .296 G1 BC
M-193 / 3271 FPS / 59 F / .250 G1 BC
OR
www.hpbt.org/articles/223.doc
If you use the G7 drag models (for boat tails) it has a BC of 0.158, which is more realistic
1/12/2012 10:46:31 AM
SS109 3000fps
Scope height 2.5"
100yd 0
200yd 1
300yd 3
400 yd 6
500yd 10
600yd 14
All MOA
Scope height 2.5"
100yd 0
200yd 1
300yd 3
400 yd 6
500yd 10
600yd 14
All MOA
1/12/2012 10:46:33 AM
Originally Posted By Bradders:
If you use the G7 drag models (for boat tails) it has a BC of 0.158, which is more realistic
Originally Posted By ACR26:
SS109 62gr - BC 0.325
OR
M16A2
M-885 / 3113 FPS / 59 F / .296 G1 BC
M-193 / 3271 FPS / 59 F / .250 G1 BC
OR
www.hpbt.org/articles/223.doc
SS109 62gr - BC 0.325
OR
M16A2
M-885 / 3113 FPS / 59 F / .296 G1 BC
M-193 / 3271 FPS / 59 F / .250 G1 BC
OR
www.hpbt.org/articles/223.doc
If you use the G7 drag models (for boat tails) it has a BC of 0.158, which is more realistic
Incidentally:
.304 is the BC that Trijicon uses for M855 ammo and the BDC on certain ACOG scopes
You'll Like this then
http://www.frfrogspad.com/g7bclist.xls
1/12/2012 11:01:38 AM
Thanks Mark
1/12/2012 11:04:41 AM
Originally Posted By Renegade_Master:
Thanks Mark
Thanks Mark
God, I'm awesome
1/12/2012 11:08:38 AM
So modest too
