Question on bullet coefficents..

[MrOneEyedBoh]

Im running FGMM 175gr 308 variety. And Im interested in plugging in some info into Strelok for a table estimation. For BC of the 175gr SMK, being pushed at 2600fps ( guesstimate ) the BC is around .496, right? ( http://www.sierrabullets.com/index.cfm?s...mp;bullettype=0 ) seen there, it gives a pretty broad range of BC for the FPS, so guessing my gun isnt under 1800 and not over 2800 ( haven chrono'd ) I can use the 496 safely? I ran that in Strelok and it came damn near close to my real world readings out to 1000yds.

 

[1kHIT]

Re: Question on bullet coefficents..

Yes, you can use the value safely. Your final comments gave the most trekking info of all: that your final data will be based upon real world shooting. Each rifle will shoot just differently enough that you should be able to identify an established pattern of performance to give you consistent results. And as such, consistency equals accuracy.

 

[MrOneEyedBoh]

Re: Question on bullet coefficents..

No question. I guess I was asking for a verification if what I was thinking was correct. And if I was reading the black and white letters correctly. I guess what Im asking is just that and it seems so easy, thats why. Im ultra new to this, and Im learning as I go... Just seems too easy. I guess thats why these programs and so popular, they are very accurate ( with in reason ) and simple to use.

 

[1kHIT]

Re: Question on bullet coefficents..

Changed my reply, but took longer than I thought!! LOL!!

 

[338macgruber]

Re: Question on bullet coefficents..

Check out Applied Ballistics by Brian Litz - it's a great book that comes with software that will help you get dialed in with your long range accuracy.

Streylok is a great app, but also check out the App called "Shooter"

Also, the Brian Litz Ballistic Coefficients have proved much more accurate than the standard BC's posted on manufacturer's websites.

Another helpful hint is if you are using boat-tail hollow points (BTHP) , go with the G7 drag model as opposed to the G1 drag model - you will get more accurate DOP data with them.

 

[MrOneEyedBoh]

Re: Question on bullet coefficents..

Thanks.