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rws48 · Member

As I mentioned in another thread I bought a Benji Plains in .22 & when I chrono'd the thing it gave me right at 600 f.p.s. instead of the advertised
950 f.p.s. with a 14.3 grain pel. Accuracy was very poor.
Maybe Crosman thinks we don't own chronos?
Mentolio gave me some sound advice to clean the barrel well, then shoot a lot of pels and see if accuracy improves.
I did clean it well, even lightly polished the bore with ultra fine 800 grit
non embedding polish. Very lightly.
I found the original scope a C.P. 3 X 9 had somehow drawn moisture inside and was useless.
I put on a Leapers 6 X 24 that I took off another a.g.
I found out why I took it off another a.g.
It's broken, adjustments won't work at all but I could hit the target
at 20 yards so shot for groups using Discovery (Crosman) 14.3 grain
pels.
At first I was lucky to get 2" but thought that might be due to the cleaning.
I shot about 25 pels then groups quickly shrank.
It was cold out and fingers getting numb so I quit when my last 5 shot
group was just under half an inch.
The rifle is accurate enough now.
I have a spare, new, C.P. 4 X 16 I can mount tomorrow.
Maybe I'll have time and it won't be so cold & I can chrono it again wiht
the 14.3 grain pel.
I have limited experience shooting game, other than rabbits, with the a.g.
Is 600 f.p.s. enough gee whiz to kill fox squirrels at no more than 25 yards?
I like the Plains rifle only because the stock fits me like a glove, it's easy to carry, comes equipped with sling mounts front and rear.
If Crosman will sell me a new improved Nitro II piston is it worth the bother if I'm getting good accuracy with it as it is now?
Wonder what real world velocity is for the new improved Nitro II?

rws48 · Member

I mounted a new C.P. 4 X 16 on the Benji Plains and sighted her in using Discovery 14.3 grain pels at 20 yards, no wind, 35 degrees with light rain.
I don't have a great rest here at my g-friend place so use a chair and
the purch banister for a rest putting the stock on my open left palm.
I'm not taking a lot of time so don't expect groups like I would from a solid
bench and warmed weather.
Still I'm getting 1/2 to 3/4 inch at 20 and that is acceptable for me for now.
I want to experiment with JSB 16.0 grain pels and maybe the heavy Crow Magnum pels. Perhaps they are more accurate but as it is now it's good enough for head shots on squirrels which in my main goal.
I want a quiet squirrel rifle that is effective at 25 or so yards.

AirGunEric · Site Admin

The rifle should max out at around 700fos using 14.3gr pellets- but it may take 500 shots to get there- if the barrel was that dirty, the piston seal may also need time to wear into the bore properly.

rws48 · Member