I finally had some EBR Target Challenge fun this past weekend in the down time of our field target/airgun-filled camping weekend.
There is nothing extraordinary here, but possibly interesting to anyone chasing groups at 100 yards with airguns, especially considering the guns, projectiles, and barrels these were shot with.
All these were from 100 yards and witnessed.
USFT/20FPE .177 First are two of three cards I shot using my USFT and sitting on a bumbag from my field target position. This gun does 905-925fps with JSB 10.34, so around 19.5fpe. Barrel is a 24inch .177 poly with a slight choke. The winds varied in intensity and direction but keeping an eye on the flags it was pretty predictable, average hold-off was probably 4 or 5 inches, with extremes of that being from dead-on to 8 inches of required hold off. Not many sighters were taken, less than 10 total, and all but 1 or 2 sighters were taken first. I ripped the scored shots off pretty quickly.
The third card I shot with this gun looked like about a 206 when scored from the scope, but there were a couple Xs on that one, just had too many 6s that the wind got a hold of on that 3rd card to score very well. Pretty fun little experiment with the 20fpe. Hard to see those tiny .177 holes.
JSAR Raptor .22 The next ones were shot from the Raptor with a Career 707 barrel. I think the Career barrel has a 1:22 twist and no choke. It is about 18 inches long. I'm not sure of the energy but it was around 48fpe with a slightly longer (different) barrel and I'm sure losing the 3 or so inches going to this barrel would have decreased the power to maybe the 42-44? fpe area. Shots taken from the Raptor were from a plastic table and bipod, essentially benchrested.
And yes, this first one is with slugs (hey, I was curious). I used zero hold over and zero input from any wind flags or timing of shots for opportune wind characteristics. I just wanted to see what the wind would do to slugs, compared to pellets.
NSA 20.2 slugs I was quite pleased, considering I just held as close to dead center as possible for all shots. Wind sure gets those slugs less than diabolos, even the good ones like the 25.4gr JSB MRDs.
This was the cherry picked, best 100 yard, 5 shot group from the Raptor with slugs.
And, finally, here are ten consecutive shots also taken from the Raptor with Career barrel, all the same settings as above but using JSB 25.4gr Monster RDs.
No hold off for the above 10 shots with MRDs, and the left to right push is evident.
VERY fun experiment.
