Post by elkman1310 on Apr 7, 2018 19:25:34 GMT -5
Well I am always looking for the next best thing when it comes to bullets for 1,000 yard competition I think I finally found them. Flat line bullets are CNC machined copper bullets similar to Cutting Edge bullets but they doesn't use that thin seal tight band which seems to cause problems for people you need the right throat in your gun to shoot those. The flat line have a short bearing surface they are very long for there weight by caliber hence the higher BC which is what ever long range shooter wants.
Flat line bullets are not cheap they are designed strictly for long range target shooting I check every bullet in this box of 50 and after doing that I found out you really get what your paying for. All 50 weighed within .02 hundredth of one another everyone mic. .30795 on the bearing surface and everyone was exactly 1.611 long that was pretty impressive. I was told that you need a very short throat to touch lands with these bullets so I knew I would not be able to do that.
Dan told me they are not sensitive to jumping and he is right I seated mine out as far as possible and still kept enough in the case neck for good hold on the bullet. I started off 62.5grs of RL16 with my proven accuracy for my 300WSM load with 210 Berger lrbt . I knew that would be on the light side since these weigh less these weigh 182grs not 180grs like the box said. With 62.5grs of RL 16 and this 182gr Flat Line it shot a nice small 5 shot group at 100 yards 63.5grs shot vertical so I moved the barrel tuner ahead on full turn and tested 64.0grs the vertical went away then I shot 64.5grs and it became awesome. The velocity was 3088fps with a SD of 6fps for 5 shots just what I was hoping for they told me I should find a accuracy node around 3075fps they were right.
So know I have a good base line to work from my next test will be at 360 yards and see how they perform our 1,000 yard range is still closed due to new construction so 360 yards will have to do. When you factor in the cost of buying a box of 30Cal Berger match bullets and spend the time sort do all your checks and you get half a box of match quality bullets it becomes a no brainer to use these. The true test will be how well they really shoot at 1K they will really be superior for less wind drift then anything else I have used so far. They do make 198gr but it takes a 9 twist or faster and also you really need a bigger case then a 300 WSM to get the full advantage of the higher BC these 180gr have a BC of .712 at 3,000fps verified by Doppler and also Bryan Litz at Berger the 198gr is really high at .865 These bullets are used by all the EOL shooters out to 2 miles so they should work at 1K