Post by elkman1310 on Sept 4, 2019 16:43:06 GMT -5
This gun was mainly put together as a fire form gun using Lapua brass for my other two good Dashers well a few days ago I fired 47 new Lapua cases in the Norma chamber which has the longer neck but I fired them to use in this gun because I wanted to see how they would shoot compared to the Norma brass. The gun shot really well with the Norma brass but it is shows signs of wearing out early primer pockets are loosing up and I was at the top end of my loading with the Norma brass so I started off with new Lapua cases.
The Norma case measures 1.600 a Lapua version usually always fire forms around 1.540 since I didn't neck turn these cases they came out really short at 1.525 never seen that before so the neck was .070 shorter after trimming the brass this gave me a freebore of .070 for the neck and then I had the standard 104 throat freebore this wouldn't work if you had a long freebore unless you wanted to only jump your bullets I picked out 15 of my best cases for weight and neck thickness because I didn't neck turn these I loaded up 33.4grs of Varget a 105 VLD and 450 primer with the bullet seated into the lands I tested it at 365 yards and it shot 15 shots under one inch so I loaded the same cases again an had a chance to test them this morning at 1,000 yards conditions were mint and the little gun shot a 4.750 10 shot group with 8 going into 3.500 and a 99 out of 100 this was all practice our match is on Saturday and I will be shooting this gun again that is 3 four inch groups from this gun . Sometimes you have to think outside the box to see what really makes them shoot.