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Rifles, Reloading, Optics, Equipment
Reloading
Flash hole uniforming?
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<blockquote data-quote="Vol1975" data-source="post: 2023770" data-attributes="member: 100380"><p>i general just take a look and if one looks out of size I check the size per Sprc. </p><p>sammi spec are as follows:</p><p>Standard flash hole specifications (SAAMI)</p><p></p><p></p><p>Large (rifle or handgun) primer: 0.080" +/-0.002"</p><p></p><p>Small (rifle or handgun) primer: 0.076" +/-0.002"</p><p></p><p>5/64" drill bit equals 0.0781"</p><p>i bought Several drill bits and keep them laying around for an easy check. If they are to Big i trash them. What I have found is they have to be shot a lot to be to big. </p><p>I did a test years ago on increasing my flash hole size a bit and what I found was it changed my group size once the hole was larger than the avg size. I want to say that when I went fairly large over flash hole size is when I seen a difference. </p><p>that my 2 cents.</p></blockquote><p></p>
[QUOTE="Vol1975, post: 2023770, member: 100380"] i general just take a look and if one looks out of size I check the size per Sprc. sammi spec are as follows: Standard flash hole specifications (SAAMI) Large (rifle or handgun) primer: 0.080" +/-0.002" Small (rifle or handgun) primer: 0.076" +/-0.002" 5/64" drill bit equals 0.0781" i bought Several drill bits and keep them laying around for an easy check. If they are to Big i trash them. What I have found is they have to be shot a lot to be to big. I did a test years ago on increasing my flash hole size a bit and what I found was it changed my group size once the hole was larger than the avg size. I want to say that when I went fairly large over flash hole size is when I seen a difference. that my 2 cents. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Flash hole uniforming?
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