HW100 .177 First Day

[SteveinHNL]

I finally got my scope and rings in and on. After spending some time, trying to zero the scope, the best I could, I tried 10 shots with four different pellets from 25 yards. The differences between the pallet groupings is so dramatic, but you can see which varieties it seems to like best. To be honest, there are probably other variables like my being a bad shot but I tried my best on all of them.

 

[qball]

Didn’t realize HW100 is this pellet fussy, at 25 yards it better be 1 hole unless there is a hurricane. Did you clean the barrel?

 

[SteveinHNL]

Didn’t realize HW100 is this pellet fussy, at 25 yards it better be 1 hole unless there is a hurricane. Did you clean the barrel?

I didn’t. Plus I bought it used, so I guess it’s back to YouTube for me to clean the barrel.

 

[oOmpH]

Surprised the heavies did so bad.

 

[elh0102]

It should shoot the 10.3 better. What is your velocity? Since it is a used rifle, I would remove the barrel and give it a good cleaning. I don't have vast experience with the .177, but I've had a few, and I've never had one that didn't shoot the 10.3 well, including my HW100.

 

[beerthief]

You do not have to remove the barrel to clean it , just pull some patches through . A .177/22 Bore Snake will do the job . or fishing line (20# test ) and cut up old T shirt material .

 

[elh0102]

You do not have to remove the barrel to clean it , just pull some patches through . A .177/22 Bore Snake will do the job . or fishing line (20# test ) and cut up old T shirt material .

True, but the breech area is very confined. Depending on your pull-through plug, it's easy to start it crooked, which can damage the breech O ring, and it's not the easiest to replace. And, if I bought a used rifle that indicated any accuracy issues, I would clean the barrel with a rod and brush. This barrel is very quick and easy to remove. Next would be a chrono run to check tuning.

 

[CharlieF]

My HW100 Bullpup loves the Crosman 10.5s and the JSBs at the 10.5 weight. Did not do well with the lighter pellets. My muzzle velocity with the 10.5s was around 956 fps and with the lighter pellets 1080 fps. Do everything suggested above and then try some heavier pellets.

 

[joelayfield]

you need a chronograph, just guessing at your pellet speed is just that ! whats on everyone's mind is pellet speed and shot string , those fx pocket chronograph's are a great tool , easy to use and no set up ,

 

[Vana2]

My .177 HW100 likes the JSB 10 gr pellets. Check the velocity - mine was shooting over 1000 fps when I got it and had to tune it down.

 

[inverted]

If it's a used HW100 it would be advisable to check the reg pressure also. It's easy to mess it up without a tester.. 1/8BSP to M6 adapters are readily available online and so are the decent quality manometers up to 160 bar