I'm looking to buy a Redding bushing die for a 260 using Lapua brass. I'm not sure what size bushing to order. What neck diameters are you guys seeing on your loaded 260 using Lapua brass?
260 Loaded Neck Diameter?
- Thread starter mkmckinley
- Start date
Re: 260 Loaded Neck Diameter?
I am getting .294 with both my handloaded Lapua brass in 123 and 139 scenars and Corbon factory 142 smk. I use the .290 bushing with Lapua brass and get an outside neck diameter of .2918 average of 10 random measurements with both my calipers and and precision mic. Lapua unfired new brass averages .2905 using the same measurement methodology. I am shooting to .002 neck tension.
I am getting .294 with both my handloaded Lapua brass in 123 and 139 scenars and Corbon factory 142 smk. I use the .290 bushing with Lapua brass and get an outside neck diameter of .2918 average of 10 random measurements with both my calipers and and precision mic. Lapua unfired new brass averages .2905 using the same measurement methodology. I am shooting to .002 neck tension.
Re: 260 Loaded Neck Diameter?
.294 loaded.
FWIW, I use the .292 bushing with my Lapua .260 brass. I have had extremely good accuracy with both 140 Berger VLD's and Lapua 139 Scenars with ES in the 10-12 range and absolutely zero setback in the magazine. I tried the .290 bushing and didn't like the seating force I was feeling. YMMV.
John
.294 loaded.
FWIW, I use the .292 bushing with my Lapua .260 brass. I have had extremely good accuracy with both 140 Berger VLD's and Lapua 139 Scenars with ES in the 10-12 range and absolutely zero setback in the magazine. I tried the .290 bushing and didn't like the seating force I was feeling. YMMV.
John
