Originally Posted by Sportsdad60
Calhoun, how about these Sierras?
WIll they be stable? pre-1950 rifle.
https://www.brownells.com/reloading...ed-100-box-sku749003137-34354-66844.aspx

I've found this web site to be very useful in looking up bullet lengthes. http://www.jbmballistics.com/ballistics/lengths/lengths.shtml

It lists the 100grain Sierra ProHunter at 0.970" long. As a comparison, the Speer 87grain that works well in the 1:14 is listed at 0.82". If I recall correctly, you posted that you have a .250 that was re-barreled from a 22HP. If it was rebarreled at 1:10, the Sierra will most likely work; if 1:14, doubtful.

Last edited by KeithNyst; 10/25/17.