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Long range caliber

So far I've had no problem connecting with my target at 200 yards with 18 grain .22 Diabolos and 25 grain .25 Diabolos. The .22 does surprisingly well at distance. Wind can be tricky if it picks up or decides to be switchy though. 

I just set up a target at 272 yards, going to attempt it with the .22 in a couple weeks when I get back from holiday and work trip coming up. 

Never had the pleasure of shooting a .30, but I bet that would work much better in the wind. Ruins some of the fun though!
 
try a rifle that can shoot accurate the JSB KING Heavy 33.95gr..... they have better BC than the .30 44.75gr.... i shoot this ones on my RAW and its a dream!!

I'll see your .25 cal 33.95gr with a BC of .046 and raise you .257 cal 75gr with a BC of .18 traveling at 1050fps.  I think it is a no brainer if you are wanting to shoot 100+ yards with an air rifle. Not saying you cannot hit something with a "pellet" of any caliber at ranges longer than 100 yards but it is hard to ignore the data whem you start putting the numbers into a ballistics calculator. My rifle above is for (airgun) long range shooting that was the purpose for me buying the rifle.
 
The only thing holding me back with .257 is the price of ammunition. It’s very pricey.. close to center fire ammo. 

I cast my own, otherwise yes way to expensive. Casting I spend 3 -3.5 cents per round for lead. First time you sit down for a good casting session you have paid for the mold. Sure there is a cost to the casting equipment, but it is a one time cost and part of the hobby for me. It is just like reloading PB cartridges. You really still spend as much for shooting, but you get to shoot a lot more for the money you spend, if that makes sense.

These molds will feed your .257 cal air rifle.

https://www.midwayusa.com/product/1010232363/lyman-2-cavity-bullet-mold-257420-25-caliber-258-diameter-65-grain-flat-nose-gas-check

http://arsenalmolds.com/products/257-bullet-spitzer

http://arsenalmolds.com/products/257-Bullet-boattail


 
a .257 set up properly shooting slugs @ 1050~ fps will have half the projectile drop at 200 yards compared to a .25 cal shooting 33.95's @ 900 fps, and will be effected equally as less to the wind. Its pretty much a hands down .257 slug shooter for long ranges...Sure the 33.95's might do fairly well but the .257 shooting 75 gr's would blow them out of the water.



If you wanna stick to diablo pellets, .25" cal and 33.95 gr are a great choice. 200 yard shots with around 90 inches of drop with that projectile is asking a lot. I personally think shooting anything below PB velocities @ 200-300+ yards is ridiculous anyhow...even with incredible BC's like .18 you will experience drop in FEET, which is what I'd call an extreme condition... although the challenge itself is always fun.
 




I personally think shooting anything below PB velocities @ 200-300+ yards is ridiculous anyhow...even with incredible BC's like .18 you will experience drop in FEET, which is what I'd call an extreme condition... although the challenge itself is always fun.

Shooting the airgun at 200yards will be a challenge like shooting a PB at 500+ yards and so much cheaper. 😎 I have a .257 Weatherby Magnum at 200yards it is like taking candy from a baby, and the "cheap" rounds are $2 / round. Fun to shoot, but gosh it will put a hole in your pocket real quick.
 
No matter the gun, the longer the range, the more important becomes ballistic coefficient and sectional density. That being the case, beyond 100 yards slugs beat hell out of shuttlecocks (pellets). And at even longer ranges, a long, slender .25 slug at higher velocity than possible with larger caliber airguns seems to be the best choice. 

When you're asking an airgun to do a firearm's job (shooting well beyond 100 yards), you gotta pay the price to play that game with expensive ammo or making your own boolits.
 
 

A good start for info.

www.youtube.com/embed/TW0njs5npY4

Lots of other good youtube channels on casting. 

FortuneCookie45LC, Elvisammo, Full.Lead.Taco

The Texan is the only "production" .257 that I know about. I know there are some custom builders build them, but I wanted more of a production type gun and the Texan has had good success in the larger calibers.