Caliber MOA

[Troy Bakel]

1. Five shot group that edge to edge is no greater than 0.0324" + pellet caliber.

2. Caliber MOA for 0.30" = 0.3324", which is:
a. 31.75 yards or 95' 3"

3. Caliber MOA for 0.177" = 0.2094", which is 20 yards.

Have shot 0.177 sub Caliber MOA five round groups of 0.190" to 0.199" EtoE many times with my Thomas BR. Only 4 times with my FX Impact M3. Always indoors at 20 yards.

Have yet to shoot less than 0.34" EtoE with my 0.30 caliber FX Impact M3 outdoors. 3 different brands of pellets have shot 0.327" to 0.329" EtoE indoors at 20 yards, so I feel the rifle and the pellets are capable of sub 0.33" EtoE outdoors at 95'3" if I can ever get the "stool to trigger interface" to improve.

 

[JEFFPPC]

Don't understand how you come up with the distance?

 

[wimpanzee]

This math doesn't math for me.

 

[Troy Bakel]

1 MOA at 100 yards is 1.047"

0.01047" of MOA per yard

1 MOA at 20 yards is 0.2094"

.177 pellet would be the smallest diameter pellet that can have a five round group that is less than 1 MOA edge to edge at 20 yards.

20 yard MOA is 0.0324" in diameter greater than 0.177 caliber.

The indoor range at PSA is accurately measured to 20 yards from firing line to target backer.

As such, my standard for edge to edge five round group size when testing pellets became 0.0324" plus caliber, or what I call Caliber MOA.

The Caliber MOA Distance for 0.30 is (0.30"+0.0324") ÷ 0.01047" MOA per yard = 31.75 yards or 95'3".