WebJul 11, 2014 · I read the 6BR Cartridge Guide in Accurate Shooter and they recommend leaving the flash hole size alone and not reaming. Then it says that flash holes anywhere from .059" - .063" is normal, so am I going to ruin and compromise accuracy if I ream my 6BR Lapua flash holes to .0625? Oh and also chamfer the flash hole. Dave T WebJul 9, 2024 · Flash hole size advice needed ExPiney Mar 17, 2024 ExPiney Gold $$ Contributor Mar 17, 2024 #1 So, I have several hundred 6.5 cm brass, lapua, small primer, small flash hole. I made the mistake of decapping with an oversize pin, and now about 1/3 of them have forcefully oversized flash holes, and the other 2/3 have the original .060.
Flash hole size - The Firing Line Forums
WebSep 30, 2024 · Flash Hole Warning (size matters) elvis ammo 30.8K subscribers Subscribe 616 6.8K views 1 year ago Flash hole size? Standard vs High Standard? 0080” vs … WebAug 14, 2012 · As I pushed the cleaning media from the primer flash holes, I noticed that some flash holes were noticeably larger than others. I sorted 10 of them into large and small hole groups and using drill bits and a micrometer, I measured the hole diameter. The Winchester and Remington case's holes measured 0.075". harm hinrich brandt
223 flash holes • Enough Gun
WebFeb 21, 2024 · Probably from some “green” primer rounds. I’ve loaded them but really never made any chrono tests. I Do know that going from a small Norma brass sized flashole to a standard size will gain you about 30-50 fps. I don’t know for sure if there’s a point of diminishing returns though. I would keep them for practice or do some testing to ... http://www.opticstalk.com/flash-hole-size_topic13802.html#:~:text=In%20%22The%20ABC%27s%20of%20Reloading%22%20by%20Dean%20Grennell,in%20diameter%20or%20a%20No.%2045%20drill%20bit. WebNov 16, 2013 · To isolate the effect of flash hole diameter alone, German set up a test with the two types of .308 case that have a small primer pocket: Remington BR brass with a 0.080″ flash hole and Lapua Palma brass with a 0.062″ flash hole. NOTE: German reamed the Lapua brass to 0.062″ with a Sinclair uniforming tool, so it was slightly larger than ... harm hulshof