01-23-2017, 09:59 PM
Light transmission is a function of several avenues, in this case of magnification, it's optimum lens diameter for the power factor and range of adjustment.
What they learned with the 2.5-10x44 PST was that anything over 32mm of objective was a waste, which is why the 2.5-10x32 PST FFP was born. That had 4 factor magnification.
The new Gen II PSTs have 5 factor magnification, so the 2-10x32 and 3-15x44 will make excellent options, especially for 6.5 Grendel.
On the 1-6x, I doubt anything bigger than 24mm on the objective will transmit more light due to the alignment and focus of the optical elements.
What they learned with the 2.5-10x44 PST was that anything over 32mm of objective was a waste, which is why the 2.5-10x32 PST FFP was born. That had 4 factor magnification.
The new Gen II PSTs have 5 factor magnification, so the 2-10x32 and 3-15x44 will make excellent options, especially for 6.5 Grendel.
On the 1-6x, I doubt anything bigger than 24mm on the objective will transmit more light due to the alignment and focus of the optical elements.
NRA Basic, Pistol, Rifle, Shotgun, RSO
CCW, CQM, DM, Long Range Rifle Instructor
6.5 Grendel Reloading Handbooks & chamber brushes can be found here:
www.AR15buildbox.com
CCW, CQM, DM, Long Range Rifle Instructor
6.5 Grendel Reloading Handbooks & chamber brushes can be found here:
www.AR15buildbox.com