Primer blowby - 9 mm handloads - update
After 10 reloads of 50 Blazer cases there was no indication of primer blow-by or primer leakage. However, after decapping, resizing and cleaning (wet tumbling) and examination of the cases, one was found to be split but just short of the mouth of the...
Primer blowby - 9 mm handloads - update
Recap....
Three boxes of factory cartridges (Blazer, Magtech, Fiocchi – 150 total) were fired and then reloaded 9 times with no indication of primer blow-by or leakage. However, while there was no primer leakage, incipient case fatigue was observed...
I have just completed firing the sixth round of reloads (150 rounds; Blazer brass, Fiocchi brass, Magtech brass) with no sign of primer blowby. The 7th round of reloads is in process. Will continue to provide results as they become available. Nothing in the process has changed. Cleaning...
Dudedog: Just finished the fourth reload sequence and there is no indication of problems with blowby. I'm in the process of reloading the fifth set and will let the folks know what the results are. I suspect that there are a few reloads remaining with this brass but I will let the results...
Primer blowby - 9 mm handloads - update
I have reloaded 150 cases three times now using 3 different manufacturers (Blazer, Fiocchi and Magtech) and thus far I've seen no indication of primer blow-by. I've also purchased a Primer Pocket Go-No Go tool.
cmcgehee: I'm glad to see there are other reloaders using the SS pins to clean their brass. I follow almost the same process you do with a Lortone tumbler equipped with two 3 lb capacity containers. I find it does a very good job. Thanks for your input and experiences. I have reloaded 150...
Thanks to all for your comments and suggestions.
gamestalker: Very early on I identified that I may have been over-crimping. I follow the RCBS instructions very carefully to assure that I don't over-crimp. I try to achieve a taper crimp of .001" - .002"; I measure at a point on the case near...
larryh1108: I measured the 5 rounds that I had left over from the subject batch and I measured the COL of each with a range from 1.0771 to 1.079) and loaded them into a magazine. I racked the slide which loaded the first and proceeded to re-rack (eject) each of the 5 cartridges in turn. I...
larryh1108: Thanks for the suggestion. It happens that I have 5 rounds left from the group of cartridges under discussion. Thursday I will take them to the range (with my calipers) and do as you suggest. I will post the results after I run them through the gun.
Walkalong & vaalpens: I've started anew with 150 rounds of factory ammo (115 gr, FMJ); 50 rounds Blazer, 50 rounds Fiocchi, 50 rounds Magtech. I fired this lot (no problems with primer blowby) and have cleaned the brass as follows:cleaned Blazer with barley (recommendation from a friend) for...
Dudedog: Thanks for your input. I reload only 9 mm and it's encouraging to hear that you have experienced loose primer pockets as it lends credence to the problem I've been experiencing. I'm starting with new factory ammo and will reload those cases and look very carefully at the primers...
Rule3: I did absolutely nothing with the primer pockets. No reaming or making them uniform. I take the fired cartridge, decap and resize and then put the cases in the tumbler and tumble for about 2 hours, rinse, let dry, usually overnight and insert primers with a Hornady hand priming tool...
Ironworkerwill: I did remove a half dozen or more primers from the affected brass and they didn’t look much different than those from the cases that did not show any blow-by. However, I am not positive that I am not missing something. I’ve now fired all the cartridges with the old brass and...
vaalpens: As requested here are two photos of two cartridges with primers and also the cartridges shown. The primers on these two cartridges were reset to put them below flush which I had originally thought might be the problem but it's not.
Also there is a very mild taper crimp which is...
243winxb: Given that I am a novice reloader I try to follow the recipe in the reloading manual as best I can. If you recall about a year ago or so things were pretty bad with regard to buying powder and primers and here in the northeast pickings were very slim and so one had to settle with what...
My sincere thanks to all who have responded to this problem.
Here below are answers to questions that were asked by those of you who responded.
Walkalong: Over time it seems that primers inserted in Federal, Speer, and Blazer brass required less effort than those inserted in Magtech and...
I am relatively new to reloading and recently I had to return my Sig X-Five to Sig. I received a call back from Sig about a week later telling me there was some etching of the metal at the breech face around the firing pin because of hot gas escaping from around the primers which unfortunately...
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.