20 Practical Reamer Questions

[tclaunch]

I am toying with a 20 Practical build, and was mainly wanting to set up for 39 gr Blitzkings. Looking for freebore advise. Also neck diameter of .233" was on the print from JGS, this is a good choice for Lapua, so I'm ok with that. Mainly looking for seating advise where bearing surface of bullet is maybe .010 to 020 above neck/shoulder, all help appreciated, Tim.
Was going with VT, but want more options on action fitting.

 

[L.Sherm]

If you wanna go with Lapua brass I would go with aleast a .234 neck if you don't want to turn necks. Send in a dummy round is the best option for freebore.

 

[ab_bentley]

.035" with a 1°30" lead will put the base of a 40gr vmax right at the base of the N/S junction.

Adam

 

[tclaunch]

.035" with a 1°30" lead will put the base of a 40gr vmax right at the base of the N/S junction.

Adam

Thanks Adam, I guess I need to gear up with dies, bushings, to make up a dummy case with a Blitzking. I have Lapua 223 brass so I am good with .233" ND. I saw where some used zero freebore, I'm sure would be fine with 32's.

 

[Fast14riot]

I use a zero freebore with 39gr TNT and it shoots great.

-Alexander