Rifle reticle modification

[375rifleman]

Hello, has anyone here ever used a program like the Strelok Pro App to recalculate a rifle reticles drop? I like the ACSS Reticle but as of right know it doesn't really match the ballistics/trajectory of the cartridge/load I'm using. I know that the drop is calculated for the 5.56/5.45/.308 out to around 800yds or calculated for the 7.62x39/300 Blackout to around 600yds. I've found that if I use were to use the 7.62x39/300 Blackout calibrated scope but use the 300yd for the 200yd it might actually work it's only a hair off according to jbm ballistics. I would just be limiting myself to around 500yds instead of the 600yds. What does everybody think? Could this work?

Regards

 

[ShtrRdy]

Yeah, you should be able to use it this way. The best thing to do would be to verify drops by actually shooting it at longer distances.

 

[BallisticsGuy]

If you have your ballistics inputs right then re-calibrating BDC ranges is really trivial. What you end up with when you do recalculate it all is a set of distances that are not at even numbers or regular intervals so it's harder to memorize than necessary. If you memorize it it'll make it usable but not like it was meant to be as you'll have to ignore markings in the reticle which is hard to do under pressure. I'v done exactly this to a scope with the ACSS/HUD-DMR reticle (what a ridiculous name) and then shot a PRS match that way. While I did very well all things considered it made the whole thing exceedingly difficult to keep straight in my head. I'm also balls deep into competitive shooting and external ballistics is an area where I have extensive knowledge. For someone that doesn't have both of those things going for them, I would advise against it strongly and recommend instead getting a scope with regular ol' mil or moa hash marks and skip the BDC stuff.

 

[hunter67wa]

+1 on ballistics guy remarks.
The apps are ok and a guide until you true them with correct velocity or BC, but with a BDC scope you get what you get

 

[BallisticsGuy]

On that note: Any app that you have to true velocity for is either doing the math wrong or being used wrong. The things that should normally need truing because they can and do vary in the real world are scope click values and BC. MV changes should be seen as very highly suspect. This is why I have people characterize their gun/optic/ammo before I crank out a drop table for them. When I make a drop table, it's on.

 

[hunter67wa]

They are a database and all inputs are suspect until proven

 

[BallisticsGuy]

Ballistics apps are most certainly not databases. They may contain one or more databases but that's not meant to say that containing something as a component makes you that thing.

 

[hunter67wa]

We are splitting hairs and off topic. But they are built with rules and as you change any input the outcome will change. Yes some have ammo and bullet databases but the program is a large rule driven system and as put numbers in it applies the rules and keeps all of your info. That is what a database does. And we can also agree to disagree on something in the end doesn't even matter.

 

[idcwby]

I'll get velocity and use Strelok to suggest what the drops are going to be on the BDC bars. I than go place a target at those suggested distances to determine if it's correct.

idcwby