Sierra .224 60gr HP

[SAWMAN]

That bullet is flat base,right ??
Depending on it's length,at 2700fps out of a 12 twist bbl,the rotational velocity could be down just below the "majical" 1.300. ( which is semi-ok,as long as it is not too far below)
I have a 22-250 with a 12 twist bbl that I have been doing some expieramenting with. FB bullets are definately my friend. Not many solid coppers either.
In this,bbl twist is much more important than fwd vel. --- SAWMAN

[JeffreyDeGraff]

That bullet is flat base,right ??
Depending on it's length,at 2700fps out of a 12 twist bbl,the rotational velocity could be down just below the "majical" 1.300. ( which is semi-ok,as long as it is not too far below)
I have a 22-250 with a 12 twist bbl that I have been doing some expieramenting with. FB bullets are definately my friend. Not many solid coppers either.
In this,bbl twist is much more important than fwd vel. --- SAWMAN

Yes, they are a flat base. I got much better accuracy with them at 3000fps.


JTD