How to find right bullet weight.

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osmodraama

osmodraama

Member
Dec 11, 2019
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Oulu
Because I'am novice, I just wondering a few things.. and I don't know how to ask so you all will understand what I meaning and maybe these are really stupid and useless questions..

but..okay.. I try.. 

Why .22 cal is more common choice than .25, is the reason, accuracy, ballistic, hit energy combination or something else?

....how you must to choose caliber and bellet / slug weight? 

I have .25 FX Impact MK2 PP, with 600mm slugliner and I bought this gun because I think that, bigger is better and I use 38.5gr slugs ....why? Because I think that was a better option so that the animals don't suffer at all and the hit would be immendiately killed. (more weight --> more hit power --> more lethal hit)

But is it that so simple? More weight needs more speed, if you want to good ballistics and shoot the longrange, but maybe this not possible if you can't increase speed...

and on the other hand, lighter slugs you can increase speed, but where does the right compromise go between speed and impact energy?

How to find and choose right weight / power / ballistics ration? Must I only compare hit accuracy or what? After all, was my caliber choice wrong for long distances?

Or is this an old fashioned way of thinking, because we now also have PowerPlenum and now we can also get so much more speed and power with bigger bullets..

And maybe .22 and .25 differences are not that big anymore.. and I can get good hit power and ballistics with heavy slugs, or can I?

Is there any indicative ballistics chart or good lesson video for different bellet or slugs where I could see the impact energies and accuracy for different speeds?
 
Velocity being equal a .25 has more killing power and less wind deflection than a .22.

The .22 has the advantage of cheaper ammo.

I have both. My .22 AEA Varmint is one of my most accurate guns with slugs and with NSA hollowpoints it packs a heck of a punch.

My .25 Taipan is my favorite when moving up the food chain to things that could use a bit more punch. 
 
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Wow! You asked a lot of questions😁. I’ll see if I can help answer some of them. This is what I did and how I decided what was right for me. First ask yourself what is the main use for your airgun. Is it targets or plinking fun? What distance will you be wanting to shoot? Will the main use be hunting? What is the primary game that you will hunt. Are you taking just squirrels and cottontails or maybe raccoons and coyotes. 

My most recent airgun is an FX Impact. My primary use was informal target shooting/ plinking at long ranges. I would also use it for long range hunting but only for small game like squirrels. I wanted to play with slugs at long range. I wanted a high ballistic coefficient but also didn’t want to shoot heavier .25 and .30 slugs that consume a lot of air.

My decision was to get an Impact in .22 and shoot slugs in the 24 to 27 grain weight range. That gave me a BC in the area of 0.080 with a slug that didn’t cross over the 30 grain threshold. I am able to shoot those slugs into the 950 fps range and still get a decent shot count. I don’t need the power to take larger game so the .25 and .30 didn’t seem to be right for my particular needs. The steel gong at 200 yards will ring wether I tag it with a .22 or a .25 and the extra fpe of the .25 would just be wasted.

Well anyway, that was my thought process and how I made my decision. I hope I was able to help you at least a little bit.

Kenny
 
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Thanks for the answers, they gave me the answer to all my questions.. but only thing what I still thinking.. If you want to keep good ballistics and accuracy and speed, why even buy bigger caliber, if you must to buy lighter slugs to succeed in it.

I mean, what's the point to use bigger caliber, if you still use the same weight as a smaller caliber.. then impact energy is still same, or whether the diameter affects of the slug how hard the punch is?
 
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Wow! You asked a lot of questions
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. I’ll see if I can help answer some of them. This is what I did and how I decided what was right for me. First ask yourself what is the main use for your airgun. Is it targets or plinking fun? What distance will you be wanting to shoot? Will the main use be hunting? What is the primary game that you will hunt. Are you taking just squirrels and cottontails or maybe raccoons and coyotes. 

My most recent airgun is an FX Impact. My primary use was informal target shooting/ plinking at long ranges. I would also use it for long range hunting but only for small game like squirrels. I wanted to play with slugs at long range. I wanted a high ballistic coefficient but also didn’t want to shoot heavier .25 and .30 slugs that consume a lot of air.

My decision was to get an Impact in .22 and shoot slugs in the 24 to 27 grain weight range. That gave me a BC in the area of 0.080 with a slug that didn’t cross over the 30 grain threshold. I am able to shoot those slugs into the 950 fps range and still get a decent shot count. I don’t need the power to take larger game so the .25 and .30 didn’t seem to be right for my particular needs. The steel gong at 200 yards will ring wether I tag it with a .22 or a .25 and the extra fpe of the .25 would just be wasted.

Well anyway, that was my thought process and how I made my decision. I hope I was able to help you at least a little bit.

Kenny
Click to expand...

Good advice, I chose a .22/700 Impact for all the same reasons you mentioned.
 
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