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Rifles, Reloading, Optics, Equipment
Reloading
Pressure signs
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<blockquote data-quote="Carbine Kid" data-source="post: 2008271" data-attributes="member: 59686"><p>Varget is Ar2208. This is one of the Australian Rifle series made by Australian Defence Industries.</p><p>All the Ar series are temp stable. Ar2207 = H4198, Ar2219 =H4198, BM2 = Benchmark, Bench Mark 8208 = 8208 XBR, Ae2206H = H4895, Ar2208 = Varget, Ar2209 = H4350, Ar2213SC = H4831SC, Ar2217 = H1000, Ar2225 = Retumbo and Ar2218 = H50BMG.</p><p></p><p>I work up in the hottest temp at home about 80ish*F using Federal Gold medal match, quite a soft primer. My hunting temps are 95*F to 105*F in out back Australia.</p><p>I look for the best group and stop when either the velocity (magnetospeed) doesn't go up any more, the primer flattens out or I get mild cratering. Remember soft primers.</p><p>If I get hard bolt lift before my desired velocity I change powder.</p><p></p><p>This procedure has worked well with all the above listed powders.</p><p>This procedure does NOT work with the double based powders I have used these being</p><p>Win748, Win760, RL15, RL17 and RL22. RL17 & 22 I will no longer use due to their very rapid over pressure in the last grain or so near maximum. </p><p>Now I work up any double based powder actually on the property.</p><p></p><p>Steve, work up in the maximum temp. you have at home and you should be good for 20* more in your hunting area.</p><p></p><p>Note well - I am using soft primers.</p><p></p><p>Steve.</p></blockquote><p></p>
[QUOTE="Carbine Kid, post: 2008271, member: 59686"] Varget is Ar2208. This is one of the Australian Rifle series made by Australian Defence Industries. All the Ar series are temp stable. Ar2207 = H4198, Ar2219 =H4198, BM2 = Benchmark, Bench Mark 8208 = 8208 XBR, Ae2206H = H4895, Ar2208 = Varget, Ar2209 = H4350, Ar2213SC = H4831SC, Ar2217 = H1000, Ar2225 = Retumbo and Ar2218 = H50BMG. I work up in the hottest temp at home about 80ish*F using Federal Gold medal match, quite a soft primer. My hunting temps are 95*F to 105*F in out back Australia. I look for the best group and stop when either the velocity (magnetospeed) doesn't go up any more, the primer flattens out or I get mild cratering. Remember soft primers. If I get hard bolt lift before my desired velocity I change powder. This procedure has worked well with all the above listed powders. This procedure does NOT work with the double based powders I have used these being Win748, Win760, RL15, RL17 and RL22. RL17 & 22 I will no longer use due to their very rapid over pressure in the last grain or so near maximum. Now I work up any double based powder actually on the property. Steve, work up in the maximum temp. you have at home and you should be good for 20* more in your hunting area. Note well - I am using soft primers. Steve. [/QUOTE]
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