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Long Range Hunting & Shooting
Shoulder bump problem or no problem?
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<blockquote data-quote="Tidesloe" data-source="post: 3015651" data-attributes="member: 47761"><p>If anyone happens to still be hanging around here, I have an update and could use some help. I might be looking at something completely different here. I remeasured everything today, and got .006 bump before my bolt handle closed with no resistance. I hadn't thought about this, probably should have. I'm using an origin action. It's got a removable bolt head with a spring between the bolt head and bolt body. It's got a little bit of spring action. I measured from back of bolt to bolt face, then back of bolt to bolt face with it sprung in as far as it would go and got .006 difference. I think this is what I'm dealing with. The spring is not real strong, but the extractor grabs the rim and pushes it slightly off center. Maybe enough to cause chamber shoulder to contact case and gives some pressure until it's sized back .006. Seems the case must turn in the chamber closing and opening the bolt, but I could be wrong. The bolt head is apparently holding case against the chamber shoulder, and yes causing clickers until that pressure is gone. I guess that's gonna be unavoidable with this action. What I don't get is how to tell when I've fully formed to my chamber. Based on the above it seems like I am, but I'd like to know for sure my fully formed dimension and bump from there.</p><p>Have any of you ever worked with these type actions, and know the nuances of them?</p></blockquote><p></p>
[QUOTE="Tidesloe, post: 3015651, member: 47761"] If anyone happens to still be hanging around here, I have an update and could use some help. I might be looking at something completely different here. I remeasured everything today, and got .006 bump before my bolt handle closed with no resistance. I hadn’t thought about this, probably should have. I’m using an origin action. It’s got a removable bolt head with a spring between the bolt head and bolt body. It’s got a little bit of spring action. I measured from back of bolt to bolt face, then back of bolt to bolt face with it sprung in as far as it would go and got .006 difference. I think this is what I’m dealing with. The spring is not real strong, but the extractor grabs the rim and pushes it slightly off center. Maybe enough to cause chamber shoulder to contact case and gives some pressure until it’s sized back .006. Seems the case must turn in the chamber closing and opening the bolt, but I could be wrong. The bolt head is apparently holding case against the chamber shoulder, and yes causing clickers until that pressure is gone. I guess that’s gonna be unavoidable with this action. What I don’t get is how to tell when I’ve fully formed to my chamber. Based on the above it seems like I am, but I’d like to know for sure my fully formed dimension and bump from there. Have any of you ever worked with these type actions, and know the nuances of them? [/QUOTE]
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Shoulder bump problem or no problem?
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