Pellet Calibers and wieght and how it affects accuracy.

[Raden1942]

So I wanted to discuss a theory I have and would like to hear from anybody with an opinion. I have heard time and again that a 22 caliber will always have better accuracy than a 177 when shooting 100 yards. Generally thats true.I think if you had a 177 that wieghed 14.3 grains you could possibly have an even more accurate pellet. I know they dont sell those but im looking into casting some 177 bullets and then sizing them. Anyway I have personally seen people who take big bores such as the badger and put a tj barrel on it. Making it a .375 and they shoot .43 ctc at 150 yards. So how can i make this theory a reality How would you guys design a 177 bullit? I am assuming that I will have to tune my gun for more power but I dont want to go the tj barrel route. Maybe I could modify a hand pellet maker to give a the cast bullets a slight skirt and kind of cup the bottom. Forgive my ignorance I dont know all the technical terms but ive been reloading with my dad since I was a kid I think with a few good ideas I could do something pretty cool. Thanks

 

[sonny]

Maybe something similar to a dart

 

[Guest]

 

[Glem.Chally]

"John_in_Ma"

Exactly, love this build. Have a look at .177 piledrivers, not many guns that shoot them well especially far but their 21gr I think.

 

[Guest]

Piledrives are the only .177 heavy pellet I don't have for testing. H&N branded versions are considered sub par, compared to the old stock made by Prometheus that are no longer available(likely much softer lead). Of course there is a gent down under who seems to have accumulated a decent amount.

 

[azeeb]

Nielsen makes 177 slugs. 15.5 grain.

https://nielsenspecialtyammo.com/collections/177-caliber

 

[c_m_shooter]

Longer projectiles will need a faster rifling twist. There will be a point that the bullets won't stabilize out of your barrel. If you are shooting your Discovery, mine wouldn't shoot the H+N Rabbit magnums any better than a shotgun pattern.

 

[Yrrah]

Raden 1942, Harry 1937 here reading your thread. It has prompted me to write a post further up on longer range shooting and pellet/calibre choice. You may care to read it.
Kind regards, Harry (Yrrah) in Ausralia.

 

[John "spysir" Blount]

That "theory" may pertain more so to outdoor shooting? I've seen a good number of MOA indoor .177 targets, I may have a .177 that would do it, indoors with no ventilation/movement.
Some of the poly LW barrels in .177 shoot the JSB 10.3g at 1030 , and to be honest groups just over MOA - 1.27 average of 5 five shot groups.
Naturally heavier with more power and hey ya drop the BC it may be easier to group well in climate.
Once upon a time I had a career 707II .177 that actually grouped very well at range with the Korean 16g ( not sure of the BC but a very long narrow pellet ) at just over 1000fps for the few shots in the sweet top. Back then they advertised ( and Davis stated ) they used " Walther" barrels - no chock I could detect-, at the same time other rifles did have "Lothar Walther" barrels?

Tiny-bore is the way to go in airguns, I've thought of maxing out a .177 Gauntlet for 16g or "slugs" but I'm personally no9t likely to cast.

Please keep us posted if ypou do a build/buy.

John



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