Well first i would like to thank Thursodog for bringing this subject to my attention, one i never thought about.. and didnt think it would make a difference
quick 20-25 shots on each target, rangemaster li .22 from the hw97kt, at 35 yards on 10x mag. please note after i set the zero off to the left a bit i did not adjust the scope in any way throughout this test.
so last light it was getting hard to see the bull otherwise the no lamp group would be tighter, anyway the point of this test was not to get the tightest group, but to see if the POI would change after putting the lamp onto th