Having trouble finding the lands with 195 berger.
so here is where I am at. I just got my new 28 nosler back from my gun smith who has built me rifles in the past that have shot amazing and I trust his work. I got him to throat this rifle for the 195's and I built a dummy round that he could build it off of. the coal of the dummy round was 3.740" and I wanted that to be .015" off the lands, making the round 3.755" if it were touching the lands.
So I got it home and wanted to find the lands down to the .001" for my records. he made me a exact replica of my chamber out of the end of the barrel that he cut off. so using that I normally find the lands with easy. this time not to much.
I made a bullet 3.760 to see if it would hit the lands before the case hit and it did. But with out much pressure at all I was able to get the case to bottom out. I thought that maybe because of the extremely long 195 that it might just be easier to push it in as the bullet is not as blunt as others. I then took a 162gr sst that I had laying around and thought I'd use this bullet with my bullet comparator to find the lands. I did this and it worked great giving me a measurement of 2.958" with the comparator zeroed. I then took a 195 and seated it to this exact measurement using the bullet comparator and then measured the coal to see how close it was to what I wanted. the coal of the loaded 195 was 3.705" which is .050" less than I thought it would be. I contacted my gunsmith and told him my problem and he said that It's due to the extreme shape of the 195 and that 3.740" would be .015" off the lands. Now when I make a bullet this long it chambers with ease. which has me confused because there sound be no way I can jam a bullet .035" without it making some kind of resistance. has anyone else ran into this problem with the 195's? or if you have lots of experience what would you recommend?
He also said the taper on the end of the reamer would make it hard to find the lands with the 195.
so here is where I am at. I just got my new 28 nosler back from my gun smith who has built me rifles in the past that have shot amazing and I trust his work. I got him to throat this rifle for the 195's and I built a dummy round that he could build it off of. the coal of the dummy round was 3.740" and I wanted that to be .015" off the lands, making the round 3.755" if it were touching the lands.
So I got it home and wanted to find the lands down to the .001" for my records. he made me a exact replica of my chamber out of the end of the barrel that he cut off. so using that I normally find the lands with easy. this time not to much.
I made a bullet 3.760 to see if it would hit the lands before the case hit and it did. But with out much pressure at all I was able to get the case to bottom out. I thought that maybe because of the extremely long 195 that it might just be easier to push it in as the bullet is not as blunt as others. I then took a 162gr sst that I had laying around and thought I'd use this bullet with my bullet comparator to find the lands. I did this and it worked great giving me a measurement of 2.958" with the comparator zeroed. I then took a 195 and seated it to this exact measurement using the bullet comparator and then measured the coal to see how close it was to what I wanted. the coal of the loaded 195 was 3.705" which is .050" less than I thought it would be. I contacted my gunsmith and told him my problem and he said that It's due to the extreme shape of the 195 and that 3.740" would be .015" off the lands. Now when I make a bullet this long it chambers with ease. which has me confused because there sound be no way I can jam a bullet .035" without it making some kind of resistance. has anyone else ran into this problem with the 195's? or if you have lots of experience what would you recommend?
He also said the taper on the end of the reamer would make it hard to find the lands with the 195.
