I only use a First focal plane scope and I only use matched turrets to the Reticle . The reason I would only use a FFP scope is for Holding and or ranging . and also should you have to dail and hold in combination , it cant be done accurately on a SFP or a mismatched reticle , When a shot presents it self , Time matters , Here is a few senaro s why and why it cant work , also labeling turrets by yardage doesn't work either .
OK First senaro , you gun is say a .22 cal and zeroed at say 50 yards , 30 ft pound gun and a scope MIL/MIL Scope ,FFP and you have yardages for 10 to 130 yards ok a squirrel runs out in front of you at 70 yards so you twist your turret so it says 70 , you raise gun to shoot him and he hears you and runs a few yards and runs up a tree 12 yards away and now is at a + 24 degree angle . so now what ???? your taped turret is on 70 and he ran 12 yards but he is now at an angle if you set scope to 82 yards you will still miss due to angle , , Labeling turrets for yardage doesn't work accurately
Here is another reason , OK well you labeled turret by yards , but next week you hunt and temp is 30 degree difference now what ???? so your marks are off now ,. To complicate it more is If you label turrets on a SFP then you may never get back to exact power say it is ,correct at 10x well maybe you have it at 9.89x or 10.21x so it is not accurate , and worse yet is
Mismatched turrets say a Mil reticle and MOA turrets , well we still using 22 cal 30 fpe gun this time a mismatched turret , so a rabbit runs out at 100 yards and you see another at 130 yards so you , but if you get hold value for Moa to dial or do you want mils to hold ? we know the hold is 4.2mil at 100 yards so if we dial then our turret is in MOA see it doesn't work . we have seconds to pull off the shot , we cant start calculating and doing conversions or break out a pad and paper and tart solving equations it doesn't work
Now we have a mil/mil scope in FFP ,, we see a squirrel and go to range him and he is 100 yards , now we can hold or dial 4.2 and done deal , here is yet last senaro
Ok we hunting on the edge of a field and we see a woodchuck , we have our 22 caliber 30 fpe again and our FFP MIL/MIL scope and our range finder , SO we grab our range finder to range him and the battery is dead UGGG . So I grab my gun place it on my shooting sticks and I look at the woodchuck he is 3.4Mils from head to feet , I know a Mil is 3.5 and I know a woodchuck is about 12 inches tall say , So I know he is 100 yards away , I hold 4,2 mils and fire , Head shot YAY , So with a FFP scope I can range , I can hold , Dial , or any combination ,
Having a scope in MOA or MIL is personal preference one is not better then the other , Get best glass you can afford , and don't buy a very hi power cheap scope , the glass will be blurry and not very use-able on higher powers. Also a straight power scope has better image quality then same quality scope in variable power , this is due to something called an ocular tube which houses lens that make it variable power , and because it has more lens , more places for visual abnormalities ,