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Tuning  How do you choke a barrel ?

I normally remove a bit of material from the OD of muzzle end around 3/4". This removal of material is gradual in dia. A bit more material removal from the crown end and tapering it gradually.

Then I make bush having ID of reverse gradual tapering.

Then I push fit the bush on the muzzle end of the barrel and the barrel becomes choked and gives the desired results.

Please share how do you choke your barrels if needed.
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Stocks/Grips/Chassis  SOLD Nicest grip I've ever owned: Smoke Composites Ultra Light Carbon Fiber Pistol Grip 34g!!!

Hello AGN:

Looking to sell the nicest/most expensive grip I've ever owned for any gun, period: a Smoke Composites Carbon Fiber Ultra Light Pistol / AR grip. This is an insanely nice grip made entirely out of carbon fiber and it is extremely light at only 34 grams! I'll ship it with the stainless steel bolt I used to mount it on my Leshiy 2 - if you need another length bolt for your application, let me know and I'd probably have one for you. This grip should fit any standard flat top AR application; included below are a couple of photos showing the grip as previously installed on my Leshiy.

This grip currently sells for $189 + tax/shipping so you're looking at over $210 for it if purchased from their website.

Price here is $150 delivered to your door...

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RWS  Did I damage my gun.

I was cleaning my RWS 350 and I accidentally hit the safety and touched the trigger and the barrel slammed shut. Luckily no concussion or sheared finger tips. I did shoot it after and it seemed to shoot just as hard. I need to check with my chrono. My question is even if the velocity does not change., did I do any damage to any component of the gun and how can I check for it. I realize the RWS 350 safety is not as safe as the HW and FWB 124 safeties as they require a lot of force to engage while the RWS 350 is easily moved. Thinking slamming the barrel shut is not as bad as a dry fire. Please advise.

JTS  First Problem with the "Cuda"

So, I have been leaving My rifle Connected to My tank and added air as needed. After the bottle reached My desired PSI I just left it hooked up to the Tank. It's been hooked up for about 4 days. I shot the Tank down to about 2000 psi and said, time to top the tank off again. It has turned pretty chilly here and the Rifle, tank and all were very Cold. So I went to disconnect, I relieved the Pressure from the Fill whip and air started coming out of the Fill nipple on the Rifle. Just wondering if anyone else has had this problem? Could the one way Fitting just be too cold to close all the way? I brought it in so it can warm up and then I can try putting air back in and see if it holds. Just wondering if others have had a similar experience?
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Importance of scope zero

Spent a bunch of time with a gun on Saturday. Doped out actual trajectories from 10-55 yards with three slightly different scope zeros. Bored enough today that I played with that raw data on Excel a bit and thought it interesting enough of a visual to share here.

Gun is a USFT that average 915fps with JSB 10.34s. Slow twist polygonal rifled barrel.
Scope is a Athlon Midas Tac in MIL.

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x axis - distance in yards
y axis - holdover (expressed as 1/10 of a MIL, ie 22 would be 2.2 mils of holdover or 22 clicks if dialing)

Each of the 3 different trajectory curves are produced by a slightly different zero. In theory, the three curves should be identical but simply shifted on the graph. I suspect the reason they're not identical is multifactorial: due to the reticle having mostly 0.5mil increments (0.2mil from 0 to 1mil and 0.5 from 2MIL down) due the less precise nature of holdover (this data was collected using holdover, versus dialing the turret), and simply human error.

The gray has most of the scope zero in the hold UNDER area. Most FT shooters try to avoid hold UNDER, although I've known a couple who could be competitive using hold UNDER.

The blue and red are the more likely candidates for how I typically like to set up a gun/scope. The difference being as subtle as 3 yards for the beginning of the zero distance (22 yards versus 25 yards).

I find a couple things interesting:
  • All three intersect at nearly 24 yards. So, if a guy was to zero his scope at 24 yards, and shoot at 10 and 55 and then plug that info into strelok, he runs the risk of not being aware of the slight hold UNDERs from 25 to 39-40 yards.
  • With this particular scope, ranging to the yard from 20-25 is less repeatable than optimal. This makes the blue configuration the best for me. Because that makes 22-25 yards part of my zero range. If I was to use a scope zero that coincides with the red trajectory, I'd have trouble with the 20-25s because 20 yards is 0.6mils of holdover versus 0.2 mils of holdover with blue. On that same vein, 21 yards with red is 0.4mils of holdover, but 0 mils of holdover with blue.
    • (this particular scope is more trustable on determining 45 from 50 from 55 (5yard increments) than it is on determining 1 yard increments from 20-25.)
  • A fringe benefit of a initial zero of 22 versus 25 yards (blue versus red) is that my 10 yard holdover is reduced with the blue.

In summary, KNOWING you trajectory (and to a lesser extent comparing how that curve falls on the 10-55 yardages with slightly different scope zeros) is crucial to the field target game. And also knowing your scope's strengths and weaknesses allows you to shift the scope zero to capitalize on those strengths and weaknesses.

Spending time setting up an optimal scope zero pays off during matches. Figuring out where pellets are going to go during practice ensures that they'll go where you want them to go during matches.

Quick work with the GK1

Took these four egyptian geese out with headshots in less than thirty seconds. I really love the huben platforms, I love the ability to pest and change targets quickly without taking my hand of the trigger. Getting these guys to move to a safer spot to shoot took way longer than shooting them. As far as I know, there is only one Egyptian goose caller, and I have not seen any reviews on it. So I call them using youtube egyptian goose sounds, and this usually has a 50/50 chance of them flying away to join a flock or walking around and following me. This time around they followed the noise on foot for about 7 minutes until they decided to just keep wandering. Not sure if the building walls echos were messing with where they could her the calls from but they put themselves in a favorable position, which I quickly took advanteg of!

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New AEA SLUGS

AEA Long Range Master slugs, these must be brand new, in .22, .25 and .30


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PCP Rifle  SOLD Umarex Notos

$300 plus shipping.
Notos in excellent condition and function.
Has 2 factory mags, 1 TC mag, 2 new Maple mags.
Target Forge Dodad mag/probe holder.
Airgun Capital aluminum moderator.
Black plenum and mod adapter.
The trigger is very light.
Guns functions flawlessly. Just doesn’t get used much. I like trying different ones.

No scope or rings.
Ships fron SW Ohio if you want to pickup.

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PCP Pistol  SOLD LEFT HAND Crosman 1720T and Hawke Airmax 2-12X Scope

Up for sale is the rig that I intended to use in FTP. Problem is that FTP just isn’t shot much in MN. I had Steve Corcoran make a nice LEFT HAND grip and matching forend. Both gun and scope are as new. Gun has held air for 18 months (last use). It’s bone stock except for the grip set.
price is $550 for the gun and $200 for the scope and rings. Will take $700 for both Shipped CONUS. I accept PayPal. f/f or add fees ($25).
Not Interested in trades and prices are firm. Thanks for looking. Uj
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Donny FL goes the mile

I am so impressed with Donny, I ordered a adapter for a pistol, and a little latter I think what the crap need to get the LDC i have been wanting , So I order it , So I get a email you have two seperate orders we will combine them and save you shipping,, Wow 68 years this is the 1st for me,, I company that wants to please the customer, My hats off to you ,
I am in your corner
Mike ,

Huben  Anyone using the Huma GK1 regulator

Just curious if anyone is familar with these. I have a .22 GK and am not a big power guy, nor do I shoot slugs. If I could get two full magazines with a nice consistent, low ES shooting around 750 fps (maybe even a bit lower) with 16g pellets I would seriously consider it. I'm supposing that without a plenum it's not going to be very practical except at very low power. I'm also concerned about the regulator refresh rate. And then of course, it's pretty pricey.

HW/Weihrauch  Airmasters master sport

I picked up ahw80 full length few weeks ago
What drew me to the rifle was the stock among other things , it a long stroke and a mk1 . But it has a airmasters mastersport stalker stock on it . Very well used and a bit knocked about . Going to rebuild the rifle with the skill of nick Simmons a reduced cylinder conversion . and I’m doing a sympathetic restoration on the stock . It will be reblued to . Nice project . Lovley bit of wood on this one , removed the majority of dents but left in the usage marks that a 40 year old stock picks up during it journey. Some way to go but should be nice

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Traditional Rifle  WTS Springers For Sale

I have several budget springers for sale. If you see anything that interest you, please let me know. They are as follows:

Hercules B4-2 (.177 Cal) $140

Lion Brand B3 (.177 Cal) Tuned with a custom made Filipino stock. $150 SOLD

Daisy 220. (.177 Cal) Made in Scotland between 1965 and 1970. Recently resealed. $100. SOLD

Industry Brand B3. (.22 Cal) $60. SOLD

All rifles work great with no issues. Shipping is a seperate charge and will be calculated based on your zip code. Payment via PayPal Friends and Family Only.

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Effect of altitude and temperature on pellet speed

Long story short, been trying to finalize my TX200 setup for the WFTF Worlds in few weeks

Ran 50 shots of 8.64 pellets over the chrony giving 780 fps avg @55 degrees F, yielding 11.68 ft lbs. Shot that string at 4500 ft ASL

Now I'm a bit panicked.

Phoenix is at 1086 ft ASL, Im at 4500 ft. The usual number given for Springers at different altitudes is 1.5% change for every 1000 ft gained or lost. So in my case that a 5.2% increase in efficency going to the lower altitude. Strelok Pro also says I can expect 3.7% change in every 15 degrees of temp--but it doesn say if thats an increase or decrease. Checked for the average Novemember temp in Phoenix. 75ish degrees. Rounding off for easier math., thats 7.4% change based on 55 to 80 degrees change.

One thing I cant calculate is the effect of air drag in the thicker air at the lower altitude.

And really not wanting to switch to a heavier pellet this close to the match......

If it were any other match, Id just beg out and not go. But this is most likely the only Worlds match I'll ever attend, and Ive paid for everything except gas already. Dont want to get there and be over the 12 ftlbs before even starting to sight in......

My questions are.... Am I over thinking it? meaning, the math will work out and i'll still be legal. If not, then what are some options to keep it legal at the speeds and altitude I think the gun will be performing in?



much thanx in advance



dan

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