And for me it had a more consistent BC than the 190 Hornandy.The 190 Berger has fast become one of my favorite bullets. Very easy to tune.
And for me it had a more consistent BC than the 190 Hornandy.The 190 Berger has fast become one of my favorite bullets. Very easy to tune.
How do you determine BC at a mile. I would not know where to begin.And for me it had a more consistent BC than the 190 Hornandy.
I wasn’t determining BC, I just observed vertical deviation compared to measured velocity over time.How do you determine BC at a mile. I would not know where to begin.
Thanks so much for your time and response here FrankIn the data I've seen from 1 mile.... the 190 ATIPs have the advantage. Unless you get into custom bullets like Warners. If you go custom... you need to tell the bullet maker to the .xxxx" place the bore and groove size your barrel is made to. Otherwise I don't feel you get all your suppose to out of the solids. Watch your twist also.
Around a 1k yards and less... none and I mean none of the bullets that were used for pressure and velocity testing from the accuracy data I got back for the 7/6.5PRC. That no bullet just ran away from the other ones. Then it comes down to your load and what your gun likes and the guy pulling the trigger and reading the wind.
Yes you need a 1-8 for the Atips. If you try the 197SMK you need a 7.5 twist if I recall correctly.
Go 5R for rifling. It is proven now that it helps the bc and the flight of the bullet vs conventional rifling.
Later, Frank
Bartlein Barrels
Need to know your velocity (Have a Chrono)How do you determine BC at a mile. I would not know where to begin.
I should add my experience with the advertised bc of the 190LRHT is legit and needed very little adjustment in DSF on my kestrel to get to two miles.Need to know your velocity (Have a Chrono)
Need to know your Scope Elevation adjusted up for a Mile, from a 100 yd zero
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Then plug in all other parameters in an App and adjust BC until it coincides with your adjusted elevation.
Your Scope height above bore centerline is critical to have an accurate DOPE throughout your elevation adjustments and yardage ranges.
I should add my experience with the advertised bc of the 190LRHT is legit and needed very little adjustment in DSF on my kestrel to get to two miles.
YepDid I read that correctly 2 miles?!
2 Miles!!! I LOVE IT! (and I believe you, I can tell you're that kind of guy )
408 Chey Tac or 416 Barrett would be ideal for this stuff.I think that would have more to do with the bullet than the scope. Like spotting a .223 at 1000+. Also what you are shooting into. I had no problems seeing splash with a 408 at 2500 yards at 17x because it’s a big bullet and the ground was drier so it showed a good impact.
YepI think that would have more to do with the bullet than the scope. Like spotting a .223 at 1000+. Also what you are shooting into. I had no problems seeing splash with a 408 at 2500 yards at 17x because it’s a big bullet and the ground was drier so it showed a good impact.
29X but I’m rarely higher than 25x2 Miles!!! I LOVE IT! (and I believe you, I can tell you're that kind of guy )
What power magnification on scope and brand of scope can you see bullet splash that far?
I'm out to 2200 yds (1.25 Miles) and thats about my limit for visible splash with a Kahles 6-24x
It does really well though even on 18x at that distance
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I'm trying to base a higher power scope selection on that exact criteria
being able to see bullet splash to about 4000 yds
I have a Garmin chrono.I should add my experience with the advertised bc of the 190LRHT is legit and needed very little adjustment in DSF on my kestrel to get to two miles.
Good to know, thanks for the response.29X but I’m rarely higher than 25x
Athlon scope.
Here’s a fun one, 20” 338 Norma at 2500 yards with a 4x16.
View attachment 1674457
Lapua's Ballistics App for Iphone,I have a Garmin chrono.
Guess I need to get something to do the calculations. What is a good app?
Anything else I should get?