Recent content by Grumbly

I'm also a fairly new PCP owner, less than a year. When I first started looking at PCPs I also wanted one with iron sights, but it seems like no one would bother to sell models that were capable of iron sights unless you were looking at really bargain basement models (or Olympic). Most PCPs have...

When you compress air, you reduce it's ability to hold moisture. Cold air is not able to hold as much moisture as warm air. When you use a hand pump, do it in an air conditioned room and try to pump slowly. You want to compress the air but you do not want to heat it more than you have to. If...

Here are some 50 yard groups with the HN .217 30gr. I'm the limiting factor on these groups, just using a bipod on a patio table and no rear support. New optic hasn't come in yet so these were shot with the bugbuster.

I ordered a 10x40MDE from Wes @ airgunarcheryfun and it came in the mail last night. Unfortunately there was a bit of a mix up and I actually received the 10x40MD. Reached out to [email protected] and Wes told me that it was an accident on his part. He sent a return label to me and...

I'm getting a new optic this week and I hope to be able to do some plinking if the weather will cooperate (currently gusting 20mph +). I'll also try to get some 50 yard groups on cardboard and post those. I think the factory configuration for these rifles is limited to about ~43ft/lbs (or at...

Yep, 329ft which is 109.667 yards, and I just rounded up to 110 yards.

I saw this concept posted on the forums and wanted to give it a try. I have one of the cheapie pcp hand pumps that are on ebay, amazon, aliexpress. One of these: I removed the handle at the top of the pump, drilled and tapped the air intake port to 1/4 NPT and installed a check valve: The...

Hmm. I might need to reach out Kalibrgun, as my shroud contacts the action on my .22 tac.

I think these are flying a little slow. Regulator is untouched but I have the Hammer spring maxed out. Same setting will throw a 14.3gr CPHP @ 1099FPS. Was shooting off of the bipod, no rear support. Scope is 3-9x bugbuster. These slugs seat very tight into the breech (.217). I think I'm going...

You might want to bring down your regulator a little bit to increase your shot count. I had mine set to 1800 w/ 1.25 HS and got about 75 good shots in the 890 - 870 FPS range using CPHP 14.3gr pellets. I didn't have great results with accuracy using the CPHP pellets, they seemed inconsistent and...

This is true. I toggled the safety back and forth and used that as the stopping point for my M5 bolt, and then backed it out until the safety was operable again. Then I tightened down the jamb nut that I put on my bolt so it will stay put.

The trigger on the avenger can be easily modified to break cleanly, but you have to be careful not to make the rifle drop-sensitive. Remove the trigger group and replace the forward-most adjustment screw with a longer M5 threaded fastener. I'll put up a photo when I get home if there is any...

Alright I did slightly better this time around. I left the regulator setting alone, but reduced the hammer spring by two full turns. This was giving 817 - 825 FPS and the rifle was less buzzy. My zero is at 50 yards, and the lower batch of shots are holding over three dots, and the group in the...

I also have one of the cheapie chinese hand pumps. The check valve at the bottom of the pump tube is the weak point and mine often leaks. Unscrew the pump body from the base, and at the very bottom of the pump body will be a small threaded cap. Behind that cap is a spring, check valve w/ oring...

I have fairly sensitive hearing, and I thought the avenger was too loud to use comfortably without a moderator. I have the DonnyFL Sumo and it does a good job to make it much more comfortable. If you have the avenger turned down to fairly low regulator pressures (~1400psi), it is very very close...