Recent content by dgeesaman

@SDstephan might be able to comment

Cool! Just make sure any kills he picks up are free of lead.

Define "ahead in the field" Accurate, reliable, tunable, easily modified, high power, you can't have them all so what do you value?

I’ve had this unit for a couple of trouble free years and just recently I noticed some compressor oil coming through the air drain. The sound was also very slightly off within the last operating hour. If anything was different I was filling a large tank from empty and doing it in stages. The...

Interesting. I guess if the purest accuracy is required there’s always Invar. And repeatability is far more interesting than absolute accuracy. Do you know then how they trip the chronograph to simulate 1000.0 fps?

Nice data Do you have temperature compensation? I'm sure the distance between sensors contracts as the housing gets cold. Also what do they do to create 1000.00 fps projectile? (Is it attached to a rotating wheel or something?) David

RAW punches above their weight especially the ones that were final tuned by Martin.

If Rudy and I were talking to the same source on this topic, the theory is the compressor ‘pa-PAH pa-PAH’ ratcheting the pressure against the airgun internals is harsher than filling from a bottle.

I made one using a piece of carbon fiber tube and a blob of JB putty formed on the back of a shallow-skirted pellet.

But will it remove the egginess I've measured? David

The goal is to rescue a barrel with a breech end that is poorly machined at ~.629 diameter to a good 0.625 diameter. Obviously a turned finish is perfectly acceptable if you have enough stock allowance for a clean cut. With this being uneven and barely larger than finish size, I assume turning...

Just the breech end. If your lathe can skim .000-.002 per side without chattering or making it worse, it could work. I assumed only grinding would work here because of the varied and minimal stock allowance.

I started getting my blood lead levels tested a couple years ago and my levels were not negligible. It could have come from swaging pellets, handling pellets while shooting, or reloading (primer dust has lead styphnate). I’m especially careful to not rub my eyes or nose after shooting until I’ve...

I definitely enjoyed the format. 3 targets in 4 minutes is reasonable but especially with an Open setup you have to get into a routine and keep it on schedule. No waiting out the wind for more than a few seconds. Thanks to Mike for having the gumption to attempt this. And thanks to the...

I forgot to mention that using tubing mics I did confirm the ‘wall’ thickness to be uniform within a few tenths, which is to say it’s well centered at the very breech end. Also I don’t mind losing a bit of the end. If they want to overbore, machine center, or turn down 1/2” for grinding...