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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Need help on fire forming 280AI brass
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<blockquote data-quote="longbowelk" data-source="post: 1209693" data-attributes="member: 41272"><p>Update: I checked the bolt opening and closing last night during fireforming and it seems to be ok. I think it has loosened up since I first operated it. I really paid more attention to it and it is fine. I think the gun had set up a while and got a little stiff. Probably wouldn't hurt to try and clean the bolt. The safety is a real pain as no way it should be so hard to get on safety. Anyone can give me any advice on this would be helpful. This is the side safety and not the one on top that flips up and down. </p><p> </p><p> </p><p> </p><p> </p><p>As far as fireforming I shot 3 rounds, all 162 jammed into the lands. I seated the bullets just past the lands around .004. I felt the resistance in the bolt closing so I know they were in there. </p><p>I started at 40 grains of IMR4350, it showed possible slight bulge at base,</p><p>37.5 you could bearly make out the slightest indication of a bulge, finally, 35 grs all you could see was a brighter line around the base, no bulge</p><p>The headspace measurements were the same as before on 1st 2 @ 2.136</p><p>Last one(35) was at 2.135</p><p>The 35 grains looks to be the ticket for now.</p></blockquote><p></p>
[QUOTE="longbowelk, post: 1209693, member: 41272"] Update: I checked the bolt opening and closing last night during fireforming and it seems to be ok. I think it has loosened up since I first operated it. I really paid more attention to it and it is fine. I think the gun had set up a while and got a little stiff. Probably wouldn't hurt to try and clean the bolt. The safety is a real pain as no way it should be so hard to get on safety. Anyone can give me any advice on this would be helpful. This is the side safety and not the one on top that flips up and down. As far as fireforming I shot 3 rounds, all 162 jammed into the lands. I seated the bullets just past the lands around .004. I felt the resistance in the bolt closing so I know they were in there. I started at 40 grains of IMR4350, it showed possible slight bulge at base, 37.5 you could bearly make out the slightest indication of a bulge, finally, 35 grs all you could see was a brighter line around the base, no bulge The headspace measurements were the same as before on 1st 2 @ 2.136 Last one(35) was at 2.135 The 35 grains looks to be the ticket for now. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Need help on fire forming 280AI brass
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