Added grains and pellet drop

[Dadwag]

Hi all. Speaking break barrel here. I was just wondering if anyone knows of a “rule of thumb” about pellet drop over say 30 yds vs. added grains of weight. On break barrels we can’t adjust power and I don’t like to keep adjusting the scope. I get around it by first shooting paper or wasting pellet until I figure the hold over. I am an old timer but love to learn new short cutsStay well all, enjoy the good shooting weather

 

[Dadwag]

Hi all. Speaking break barrel here. I was just wondering if anyone knows of a “rule of thumb” about pellet drop over say 30 yds vs. added grains of weight. On break barrels we can’t adjust power and I don’t like to keep adjusting the scope. I get around it by first shooting paper or wasting pellet until I figure the hold over. I am an old timer but love to learn new short cutsStay well all, enjoy the good shooting weather

Mainly talking about .22

 

[PapaT]

Even for a Sproinger, there are a lot of variables that would go into this. Would need to start with a given power. And are you saying scope is zeroed at 30 yards so what is the change in POI as you change pellet weight? Because even then pellet type plays into the equation (for BC). Also, sometimes the pellet POI moves opposite direction than expected due to time in barrel, etc. I think shoot n see is the only reliable rule.

 

[Dadwag]

Even for a Sproinger, there are a lot of variables that would go into this. Would need to start with a given power. And are you saying scope is zeroed at 30 yards so what is the change in POI as you change pellet weight? Because even then pellet type plays into the equation (for BC). Also, sometimes the pellet POI moves opposite direction than expected due to time in barrel, etc. I think shoot n see is the only reliable rule.

I have to totally agree. After thinking it over I realized the amount of variables that come into play. It was kind of a not well thought out question. I had just had a great
plinking session and I guess I was on some kind of "high". Thanks for the helpful reply.

 

[Danman]

I have to totally agree. After thinking it over I realized the amount of variables that come into play. It was kind of a not well thought out question. I had just had a great
plinking session and I guess I was on some kind of "high". Thanks for the helpful reply.

I tend to go 'crazy' when I get a new airgun with all the different pellets I feed it to find "the one" thats most accurate.
Often I will have multiple options they are close seconds, but may hit higher/lower/left/right ect. Re-dope em click away, burn off that tin of ammo and redo it again for a different tin. ...thats part of the fun for me.
Even an H&N 8gr vs a JSB 8gr pellet may impact differently out of a certain airgun.
If you find this mystery 'formula' though let us know though, waaaay too many variables I think.