08-24-2021, 09:01 PM
GN,
there are several ballistic calculators (JBM, Hornady website , the one on Berger site, etc) that you can feed in the bullet you're interested in and the velocity and look at the results.
then look at all the reloading data you can find (you did pick up the 2 volume book from this site, right?) and see if you see any loads with the bullet of choice reaching the velocity needed and note the barrel length. different bullets handle the transonic region differently in terms of dispersion. and bullets make a difference due to BC of course. a 130gr. ELDM and a 130gr. TMK will each have slightly different BCs which will affect the distance at which the bullet starts to hit the transonic region. that's about as close an answer that i can give that makes sense, to me.
have fun
-tdbru
there are several ballistic calculators (JBM, Hornady website , the one on Berger site, etc) that you can feed in the bullet you're interested in and the velocity and look at the results.
then look at all the reloading data you can find (you did pick up the 2 volume book from this site, right?) and see if you see any loads with the bullet of choice reaching the velocity needed and note the barrel length. different bullets handle the transonic region differently in terms of dispersion. and bullets make a difference due to BC of course. a 130gr. ELDM and a 130gr. TMK will each have slightly different BCs which will affect the distance at which the bullet starts to hit the transonic region. that's about as close an answer that i can give that makes sense, to me.
have fun
-tdbru