300 prc bushing size (lapua brass)

[bcoving]

What neck bushing size or most people using with lapua brass/berger bullets.

 

[cornchuck]

.336

Jason

 

[Coyote Shadow Tracker]

What neck bushing size or most people using with lapua brass/berger bullets.

Depends on the wall thickness of the brass and if you turn your necks. If your Lapua Brass is 0.014 thick then .308+ (.014x2) 0.028=.336-.002=.334 for a bushing. If the wall thickness is .015 then your bushing would be .336.
The main thing is checking the wall thickness to get the correct bushing size for the tension you want.
Different caliber Lapua Brass has different wall thickness.

 

[nwmnbowhunter]

Just measured 4 with berger 215s.

All .3385

 

[bcoving]

Thanks! .3385 is what I was coming up with just measuring. I didn't have a die yet to load a round. Wanted to make sure my math was right. I did notice alot of the lapua brass was either .015 or .0145.

 

[cbuck516]

I use a 0.334" bushing then a mandrel to set tension from the inside. I use between 0.0015"-0.0035" (going off measured dimensions of sized brass and loaded rounds, not nominal bushing or mandrel size) of tension depending on the bullet. I think if I left the expander ball installed I was getting around 0.0035" of neck tension.