The short answer is no. You can't determine accuracy at longer distances by shooting a projectile slower at shorter distances.

You may extrapolate some good info on trajectories and speed relative to pressure. But not accuracy at range. Accuracy at longer ranges depend a lot on the balance and symmetry of the projectile and external factors like wind. At shorter ranges that may matter very little.

A projectile that rotates a bit off its CG may shoot 1 moa at 100 yards but 6 moa at 300. A more balanced, longer projectile may hold MOA accuracy at much longer distances.

Depending on barrel twist, projectile length and velocity a slug may not stabilize at shorter ranges yet perform well out far. Lots of projectiles need some yardage to spin on center. They may not shoot the best at shorter ranges where projectile stability matters less.

Errors in stability multiply themselves downrange. A whole lot more is going on besides velocity decay and trajectory comparisons.

You can plot a drop and velocity curve and get an educated guess at what may happen downrange. Its a worthy analysis. But once you shoot at distance things may not add up as you expect.

I'm using regular antifreeze, just a bit, a cup or less in my 5g bucket. Water Wetter lasts longer but I didn't have any on hand. AF is working fine but I'll be changing out water soon, after 8 months.

The winning extreme bench rest score was?

Why do you need a range finder that is only 5 - 75 yards? They dont make it cause no one wants it. Why would anyone want a 5-75 yards when a normal range finder can do 5 -3000 yards and still be able to use for your 5-75 yards range. Doesnt make any sense to me. A normal range finder that does up to 3000 yards can still be use for your purpose. That is why no company would make such thing. Just cause you dont need 100 yards plus doesnt mean you cant use a normal range finder for your 75 yard range. Just like buying a chrony that reads up to 5000 fps. Just cause i dont shoot 5000 fps doesnt mean i cant use it for my 800-900 fps guns lol

The china carbon bonds did there job, When my Scott tank let got the bands slipped so little I had to put in in the bath tub to see where the leak was coming from, I aired the tank up two or three times a week later it would be down to 3000 psi, Soap and spray bottle couldn't find the leaks , Bathtub did, The bottle was given to me and had a year left on its life,,
Mike

Welp, it seems my T9 is no good. Im not sure what the problem is, but both the factory mags and my own mags have been jamming like crazy. I was hoping my mags would be able to fix the issue, since it's linear movement instead of rotary. But it seems that no matter what, the mags just can't keep up with the speed of the bolt. It keeps hitting the pellets on the side of the skirt as opposed to dead center. I've seen this complaint quite a lot, but not everyone seems to have this problem.

Either my bolt spring is too weak or too strong, or something else is amiss. But it's been a consistent issue. Fill pressure doesn't make a difference. It jams at both high and lower pressures. And it happens at least once per mag. Until I can get a fix for this I won't be able to work on my mags for a while. I need a T9 that operates properly in order to perfrom tests.

What a letdown... Bin really needs to get his poop together.

This listing has been renewed

I have one looks the same, it's been outside for 8 years and still stopping pellets. The clip that holds the target was shot a few times and eventually died.

Gerry52 said:

Used to use distilled water until I read that it's reactive with aluminum cooling jacket. I use filtered water with water wetter now. 3 years & going strong.

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Hi Gerry52.
I'm going to start using some kind of water wetter -- don't know which brand. I've been using tap water without any additives, but it's a real hassle to keep mold and algae from growing.
Are you using the Redline stuff or some other brand? Does it keep algae and mold from growing? How often do you have to dump out your bucket -- like once a year?

stovepipe

SilentSquirrel said:

Maybe then it should become a sticky

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Probably not, as it does contain mistakes, the most obvious of which is the comments on Magnus, which has little effect on the trajectory unless you have a very bad pellet.

A few of their videos have basic mistakes, probably obtained from the internet.

Definitely A.I. generated. Besides the generic, monotone voice; highly unlikely a human airgunner would use “wear and tear” to describe the effects rifling grooves have on the pellet and barrel.

“rifling grooves can also create wear and tear on both the pellet and barrel itself.”

Just a comment: I appreciate this thread! Mailing Edgun products to Spain absolutely works (purchases are easy and less expensive than in the USA), but sending a rifle needing servicing all the way to Europe seems a bit much. I have done that with wristwatches, but they are small.

We are shooters only, with no interest in servicing or repair of such tools. Ballistol and common sense are our guides . . .

Well, I don't own a Crosman Optimus, but I do own a Crosman Vantage NP which is basically the same rifle but with a gas piston power plant instead of the coil spring power source, I've owned my Vantage for going on four years now and it's always been a great shooter, I normally use domed or HP lead pellets in the 10.5 gr. weight range, the average velocity I get from my Vantage is about 825~860 fps. depending on the pellets used which equates to 16~17 FPE.
I have gotten faster velocity with lighter and lead free pellets but range and accuracy suffers.

Great shooting

Here is what i made some time ago at 857 meters (937 yards)

Now i am planning competition shooting at 1000 meters (1094 yards) with the new HP Vulcans

SpindleB said:

Not too worried, matter of perspective, half dollar vs dime. I really only use the rifle for Raccoons and they are much bigger than a half dollar. Tough buggers though, nailed them center chest (upright on two legs), knocked them over and had them get up and run a ways before I could get a 2nd shot lined up.

Is your bottle a mod and is that a plenum?

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Yep I have a 700 cc CF bottle on the front and nothing on the back, by the stock. Put a different stock on. Gun is much lighter. I have no plenum or regulator on. You need to try to head shoot coon. They are tuff to kill with rimfire rounds let alone air rifles. You may try something like Hades or Polymags if you want to chest shoot them. I get better penetration with slugs. You might try them also.

I use to coon hunt a lot. Coon was worth $25-35 bucks and you could average 3 a night. Average. Fox were $50 so I made more in a couple nights than I did working all week. Hunted them with dogs at night it was quite the sport. Being a decent pistol shot I was the designated shooter. Shot most out of trees and our technique was someone would stand slightly behind you illuminating your sights while lighting the coon. Generally we waited for them to look at us and we would shoot at their eyes. A coon can take several in the chest unless you hit the spine or cut some big arteries, their pretty pissed when they come down.

beerthief said:

after reading through these posts i was just thinking a HW30 in .20 would be perfection !

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It really is a fun and accurate combination. I'll bet a .177 can't lock the paddles up on a Crazy Eight target, and I'll bet the .22 can't reach them at 75y.

oooh I like the sound of that ..

sidpost said:

0.20 is interesting but, finding pellets in that size is very problematic for me.

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I just checked and UA AoA PA are all stocked?

Hi, Jeremy,
Even quality rifles like Weirauch will vary from gun to gun, seals are sometimes nicked in the assembly process and the amount of factory lube may vary as well. The Optimus is produced in China to a price point so it is likely there will be some inconsistency. You might try a Google search or head over to the GTA forum where there is a lot more interest in the inexpensive Chinese rifles.
HTH,
John

805y. How cool is that?!!

AWESOME!!

You're showing us that we as airgunners are heading toward a very bright future!

Thanks.

Matthias

I vote for the HW30 .177 @Bear-of-Grayling said, it is pretty much perfect. .177 pellets come in many different weights. Here are my results.

Flat and fast? JSB RS 7's
Flat and hard? HN FTT 8's
Loopy and hit like a freight train? HN Baracuda Match 10's
Good Luck at 55 yards? HN Sniper Magnum 15's

It is crazy how much the characteristics of the rifle can change with just a few grains... YMMV.