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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Hexagonal Boron Nitride
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<blockquote data-quote="barnesuser28" data-source="post: 1090382" data-attributes="member: 43468"><p>So far i have shot 15 WS2 coated 300 grain berger OTM out of my Savage .338 Lapua. this is in a new barrel and i havent shot any uncoated through it so i dont have a baseline but i was able to get 2820-2830 fps with 102 grains of RL-33, in a 26" tube! I decided to use WS2 and not HBN because of the lower COF and ive read that sometimes the HBN doesnt want to coat evenly. I have noticed that you NEED to get your bullets completely degreased before tumbling in WS2 or the results are patchy. I use 91% isopropyl alcohol to clean them and deposit it in the bore. I tumble the bullets in a pill container with about 1/2" of zinc coated bbs and about 2 grains of WS2. Tumble for 1.5-2 hours and wipe them with paper towels to get the bulk off and polish with an old sock. I bore scoped the barrel after the 15 rounds and you can definitely see there is some WS2 deposited in the bore. I will try it in some other guns that i already have a baseline load for and see what results i get. I think i am going to try the 195 berger in my 284 win, this will likely be a perfect candidate for this testing.</p></blockquote><p></p>
[QUOTE="barnesuser28, post: 1090382, member: 43468"] So far i have shot 15 WS2 coated 300 grain berger OTM out of my Savage .338 Lapua. this is in a new barrel and i havent shot any uncoated through it so i dont have a baseline but i was able to get 2820-2830 fps with 102 grains of RL-33, in a 26" tube! I decided to use WS2 and not HBN because of the lower COF and ive read that sometimes the HBN doesnt want to coat evenly. I have noticed that you NEED to get your bullets completely degreased before tumbling in WS2 or the results are patchy. I use 91% isopropyl alcohol to clean them and deposit it in the bore. I tumble the bullets in a pill container with about 1/2" of zinc coated bbs and about 2 grains of WS2. Tumble for 1.5-2 hours and wipe them with paper towels to get the bulk off and polish with an old sock. I bore scoped the barrel after the 15 rounds and you can definitely see there is some WS2 deposited in the bore. I will try it in some other guns that i already have a baseline load for and see what results i get. I think i am going to try the 195 berger in my 284 win, this will likely be a perfect candidate for this testing. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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Hexagonal Boron Nitride
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