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A space air gun. That's pretty cool.

I picked up an altaros booster (B2B edition) with the intent of running it into a regulator and shooting at 300bar or more. A bottle only lasts a few shots at those pressures... even my big 12L bottle isn't enough. It eventually worked out but it took a handful of modifications to the booster...

I couldn't let y'all have all the fun so I picked one of these up over labor day weekend. Great little plinker! Of course I couldn't leave it alone... had to open it up and start messing with stuff. Looked like it needed some porting... so I opened up the barrel, body, and valve body to 4.2mm...

Anyone know the highest ever used, or tested? While shopping for a booster pump I discovered some that go up to 32,000psi! And it got me wondering...

Been chasing accuracy with my big bores for a while now. Feels like I've tried everything other than tuning the barrel. Decided to pick up the EC Tuner V2. Seems to be the only tuner out there that works over 30cal and can be adapted to M18x1 threads. For the steep price point I seriously...

I've been messing around with some different slug designs for a bit now and figured I'd share and ask for some help. Here's my latest attempt at making a .51 mold that shoots straight. This is a 300gr .510 design that represents the culmination of my (novice level) understanding of what...

This is something I have wanted to build for a loooong time... I think the goal is within reach. Before I start making parts I want to run the idea by the group for input. Probably easiest to start with an existing PCP and slap a bigger barrel on it. That got me wondering which one would be a...

Title pretty much says it all. I've never owned or used a scope over a few hundred bucks. I've bought a few of the cheapo CVlife FFPs on amazon recently with no obvious problems. What's the deal? Edit: not really talking about nightvision scopes... for that the price makes a bit more sense.

This thread is for all of the slugs I've cast and tested. Maybe I'll find a few good combinations to recommend for others. Left to right. Weights listed are from casting with 40:1 lead/tin. 1. Lee 90316 107 grain 2. An alteros inspired mold I made 3. MP Molds 10929 120 grain 4. MP Molds...

Picked up this avenge x a while ago... awesome rifle for the price but it has some things that bother me so... on to the mods! The overall length of the bullpup avengex is pretty short... on top of that several inches of the stock barrel is the moderator. It was begging for some more...

Ever been to a shooting range that didn't allow your air gun? I went to a new range yesterday since my local club is closed on holidays. Went in, asked a few questions, filled out the waiver, paid the cashier. Then I dropped the question... " Figured I should mention this since some places get...

She said: no such thing. But in all seriousness, what is the point of diminishing returns on velocity and energy for barrel length?

I've had an idea for a while to add a dessicant trap between stages on my tuxing compressor. First I'm wondering if anyone has measured the pressure between these stages. The bowl I have is labeled up to 250psi. Figured I'd ask before I start disassembling those fittings as they seem to be...

There's a long story that goes along with this rifle... here's the short version. I picked up the challenger elite 51 back in January. Since then I've had nothing but severe accuracy problems. Many ammo types were keyholing and wouldn't consistently hit a 12"x18" target from 50yds. Some ammo...

Anyone have some concrete info on the new rattler 45? I ask because I have a deposit down on a 357 and just found out the 45 is coming.... would be a total bummer if I buy the 357 and the 45 makes more energy and similar shot count. Side question: any idea if there's a way to make the rattler...

Curious to hear about your most accurate big bore setup. How tight are the groups and what efforts, adjustments, and testing were required to get there? Any tips or tricks for improving accuracy? Any tips for what NOT to do?

The HP SS Max 357 was my first pcp. That snowballed real quick into a bunch more, but still a relatively cheap, fun and powerful option. That said it could be a lot better in a lot of ways. This thread is to share my tweaks, addons and improvements. The biggest annoyance with this rifle is the...

Aea challenger elite .51 came in at .514 Explains why most ammo is like throwing a hotdog down a hallway, and why some ammo zings toward the 18"x12" target 50yds away and can't stay on the paper. What's a guy to do? Request a new barrel? Find someone that can size to .514?

I've been browsing and see a lot of non DOT tanks for cheap like the tuxing and acecare brands. Has anyone compared them side by side with DOT tanks? The tank I have right now is an air venturi 9L made by Eaton. The brand and certification was enough to ease my mind of any and all safety...