Yesterday went to SpearPoint Ranch to stretch out our shooting distances. I was able to compare optical quality at 1400 yd, 1760 yd and 1975 yd between my Vortex PST G2 5x25 FFP my buddies Arken SH 6x24 FFP and his NightForce NXS 5.5x22 SFP.
My observations (my opinion only) of all 3 scopes at 22x:
SH4 clairity, crispness and light at 1400 was on close to the PST. When going out to a mile and then on to 1975 the PST had a slight edge, but neither being great but usable
On the NF compared to the two it was better at 1975 and more noticeable at 1400.
On 15x SH4 and PST fairly close at those distances, with PST slightly better.
Just looking at optical quality, PST and SH4 are good enough for 1400 yd and occasional pop out to 1 mile using 15x-18x
Looking forward one day to comparing to MK5, Toric, Cronus, XTR3 and others in this caterogy to see how optics quality increases
My observations (my opinion only) of all 3 scopes at 22x:
SH4 clairity, crispness and light at 1400 was on close to the PST. When going out to a mile and then on to 1975 the PST had a slight edge, but neither being great but usable
On the NF compared to the two it was better at 1975 and more noticeable at 1400.
On 15x SH4 and PST fairly close at those distances, with PST slightly better.
Just looking at optical quality, PST and SH4 are good enough for 1400 yd and occasional pop out to 1 mile using 15x-18x
Looking forward one day to comparing to MK5, Toric, Cronus, XTR3 and others in this caterogy to see how optics quality increases