AirgunAdvice.net

[madriver]

So im off work for a while due to an injury at work and really bored ok
i have this crossman quest was giving to me a few years ago and i must admit it has been a realy accurate and good shooting rifle , shot something in the 870's with CP's and shot very well. i have a turantula spring and apex seal sitting here and decided to tune this thing just to see what i can get out of it. lots of polishing was in order inside and anything that moved was more or less fixed (redesigned) or polished so that it moved smoothly and effortlessly. trigger was a very small issue just polished it up a bit. looked good to go back together. used the standard moly paste everywhere i had a friction point and of course the compression tube and seal (very little doesnt take much). after i got it back together it did indeed cock like a new rifle with a bit more ummph. most likely cause i was looking for it. like i said before it was a good shooter and ran 870's on an average. took it outside and shot it a few times. didnt feel much different to shoot, but it wasnt twangy at all anyway before , all shots were off sandbag rests and heres the raw data

7.9 gr CP's avg 895 at 14.05 fpe
10 shot string
896
900
894
891
893
896
898
896
893
893

i had to shoot indoors so i have 18 yards to play with.
top target was a scope zero

[r5nick]

Whats sort of injury mate? if its personal and you don't want to say don't!

Nice groupings and fpe string!

[madriver]

ahh left shoulder.. was tourqeing heads on a N14 Cummins and something let loose, happened right before the holidays and i still dont know yet, i havent got into an MRI yet, feels much better tho but im not relaesed to go back to work yet ..... driving me nuts tooo

[r5nick]

i torque alot of heads as we build track cars (side hobby)
and my shoulder aches alot but nothing like that!,

[madriver]

the head bolt is tourqed to 250 ftbls then another 90 degrees. 48 of them
i would guess 48 times, at somewhere near 400 ftbls

[r5nick]

The engines we do are around 80 - 100 ft lbs,

[madriver]

yeah your probalby working on a 1.6 litre or close to it right ? this is a 14 litre. i work on semi trucks for a living during the day , this particular truck had a bad head why i was in there,, it has been turned up a bit. about 500 hp and 2000 ftbls of tourqe .. i usually have help but i didnt that day and did them all. somethig gave and i dont know what

[madriver]

heck i was so bored i even built a new shooting bench and seat, gave the rifle a predator paint job, no where near his , but it was my first time :wink:

[r5nick]

Was a 1.8, and thats looks great!, what did you use and how do you get the stripes??

[220swift]