Airsoft Canada - View Single Post - First Airsoft Rifle Purchase! (PolarStar DMR?)

ThunderCactus · December 1st, 2016, 14:03

Take the time to get age verified on here, it can be a pain in the ass to get done, BUT it offers excellent buyer protection in that everyone is vetted, and usually has previous trader history. If you make a deal outside the system, there's nothing we can do about that. All used gun sales carry a risk, but the risk is minimized in the AV system.
I would highly recommend not pursuing that deal.

That's absolutely true about fluid dynamics. This is why the most important feature of an inner barrel is it's quality; to have the smoothest, most concentric, and straightest bore possible.
In terms of FIRST SHOT accuracy (the first few shots you'll put through a brand new clean barrel), material doesn't matter. Barrel could be carbon fiber, aluminum, plastic, whatever. As long as they have the same finish, concentricity and straightness, they'll all shoot the same.
In terms of performance over lifetime, stainless steel is king; doesn't corrode, and it's a hard material that won't scratch. Aluminum is too soft and even with a hard anodized coating can easily become scratched. Brass is great if you maintain it, but it can tarnish which leads to surface roughness, and it's inbetween aluminum and stainless for hardness, but you can still scratch it.

In AEG's, air supply obviously isn't an issue since you're compressing air on demand. So the only concern is whether or not you have enough volume. But widebores are better for LMG's because you don't lose as much accuracy due to barrel fouling over the number of shots fired.

So for example, a 6.03 barrel can begin to lose accuracy due to fouling (dust in the mags transferring to BBs, stuff picked up when loading mags, dust in the air, grease being aerosolized from the cylinder into the barrel, etc) in as few as 100 rounds. Largely dependent on how your gun is maintained and what BBs you use.
Sometimes you can go as many as 600-800 rounds without losing accuracy due to fouling.
But the fact is, at some point it WILL happen. Now that's not a big issue if you're not firing enough BBs to foul your barrel in a day. Or if you just don't care about the accuracy loss.
But if you're going to be running an LMG at a long game and are expecting to go through 4 bags of ammo, you're going to want to try and maintain accuracy as long as possible.
And yes, you do absolutely want accuracy on an LMG, because it's way easier to simulate inaccuracy on a sniper rifle by wobbling it about than it is to trying and get accuracy when you need it from an inaccurate gun.
So the widebore uses more air, but it will maintain accuracy better over a larger number of rounds.
Like many other things, it's a balancing act of several variables. And actually one of the very few things an AEG is more effective at than an HPA setup.

But I'd recommend just using an upgraded rifle, pick your shots, don't waste ammo if you don't have to. If you ever get into using a bolt action you'll learn that one precise BB than do the work of 50 imprecise BBs. I ran an LMG for a long time, but between back problems and running a bolt action, I don't see much point in running an LMG anymore.
You can suppress or redirect squads with just a single precise shot. And the best part is, that shot doesn't even necessarily have to hit anyone.

December 1st, 2016, 14:03	#17
ThunderCactus Not Eye Safe, Pretty Boy Maximus on the field take his picture! Trader rating Join Date: Feb 2007	Take the time to get age verified on here, it can be a pain in the ass to get done, BUT it offers excellent buyer protection in that everyone is vetted, and usually has previous trader history. If you make a deal outside the system, there's nothing we can do about that. All used gun sales carry a risk, but the risk is minimized in the AV system. I would highly recommend not pursuing that deal. That's absolutely true about fluid dynamics. This is why the most important feature of an inner barrel is it's quality; to have the smoothest, most concentric, and straightest bore possible. In terms of FIRST SHOT accuracy (the first few shots you'll put through a brand new clean barrel), material doesn't matter. Barrel could be carbon fiber, aluminum, plastic, whatever. As long as they have the same finish, concentricity and straightness, they'll all shoot the same. In terms of performance over lifetime, stainless steel is king; doesn't corrode, and it's a hard material that won't scratch. Aluminum is too soft and even with a hard anodized coating can easily become scratched. Brass is great if you maintain it, but it can tarnish which leads to surface roughness, and it's inbetween aluminum and stainless for hardness, but you can still scratch it. In AEG's, air supply obviously isn't an issue since you're compressing air on demand. So the only concern is whether or not you have enough volume. But widebores are better for LMG's because you don't lose as much accuracy due to barrel fouling over the number of shots fired. So for example, a 6.03 barrel can begin to lose accuracy due to fouling (dust in the mags transferring to BBs, stuff picked up when loading mags, dust in the air, grease being aerosolized from the cylinder into the barrel, etc) in as few as 100 rounds. Largely dependent on how your gun is maintained and what BBs you use. Sometimes you can go as many as 600-800 rounds without losing accuracy due to fouling. But the fact is, at some point it WILL happen. Now that's not a big issue if you're not firing enough BBs to foul your barrel in a day. Or if you just don't care about the accuracy loss. But if you're going to be running an LMG at a long game and are expecting to go through 4 bags of ammo, you're going to want to try and maintain accuracy as long as possible. And yes, you do absolutely want accuracy on an LMG, because it's way easier to simulate inaccuracy on a sniper rifle by wobbling it about than it is to trying and get accuracy when you need it from an inaccurate gun. So the widebore uses more air, but it will maintain accuracy better over a larger number of rounds. Like many other things, it's a balancing act of several variables. And actually one of the very few things an AEG is more effective at than an HPA setup. But I'd recommend just using an upgraded rifle, pick your shots, don't waste ammo if you don't have to. If you ever get into using a bolt action you'll learn that one precise BB than do the work of 50 imprecise BBs. I ran an LMG for a long time, but between back problems and running a bolt action, I don't see much point in running an LMG anymore. You can suppress or redirect squads with just a single precise shot. And the best part is, that shot doesn't even necessarily have to hit anyone.