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Thread: Need help with some reloading...
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May 7th, 2022, 01:44 PM #51
Re: Need help with some reloading...
Gender confusion is a mental illness
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May 7th, 2022, 02:12 PM #52
Re: Need help with some reloading...
Is it possible for the bullet crimp to be too tight?
Gender confusion is a mental illness
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May 7th, 2022, 02:35 PM #53Grand Member
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May 7th, 2022, 02:44 PM #54Grand Member
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Re: Need help with some reloading...
Not for pressure. You want the crimp snug so the case returns to the correct size but not so hard that it deforms the bullet and forms a cone with the casemouth. A 9mm headspaces on the case mouth so you need to have the sharp edge exposed. As long as it drops in to all of your chambers you have enough crimp
Since these were some unknown bullet you will need to determine the seating depth for the throat as described. Find where it touches and back off at least 0.030. And make sure the OAL will fit into the magazine since in rare cases you need to go shorter.
Looking at your chrony data I am not sure if you have a problem and are just being fooled by some scrap cases mixed in. Reading primers for pressure signs is very inaccurate and if you have a pistol that does not support the area around the firing pin (the square window) you can get fooled. Your chrony is what you should go by. Velocity is directly proportional to pressure if you use the proper burn speed (and HP-38 is perfect) so if you are getting modest velocities you are at a safe pressure. And if your velocities are constant you don't have a problem with variable charges (you are getting an outstanding spread). Next time you go out chrony some factory ammo using the pistol that leaves the square window. My guess is it will still be there and the velocity will be higher than your reloads.
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May 7th, 2022, 02:53 PM #55
Re: Need help with some reloading...
All sounds reasonable, thanks for the help. I tried to log some factory loads first for comparison but somehow I fumbled that part of the excursion. Fortunately, I got it figured out by the time I got to my reloads and definitely by the time I got to my .338s. IIRC I also set my OAL to what my factory ammo is.
Gender confusion is a mental illness
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May 7th, 2022, 05:39 PM #56Grand Member
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Re: Need help with some reloading...
sigh
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May 8th, 2022, 08:39 PM #57
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May 28th, 2022, 10:33 PM #58
Re: Need help with some reloading...
Those rectangular-looking primer strikes are typical of Glocks.
There are two kinds of guns. Those I have acquired, and those I hope to.
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September 22nd, 2022, 07:37 PM #59
Re: Need help with some reloading...
Another reloading question...H&Ks have fluted barrels and I have heard that the flutes make the brass ineligible for reloading. What do yous think about that?
Gender confusion is a mental illness
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September 22nd, 2022, 08:00 PM #60
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