LAPUA
I purchased a 100-count of new Lapua .223 brass on Gunbroker. Weight consistency was decent at 92.2 min - 93.4 max before case prep (1.3% variation). Then I started measuring and prepping.
OAL's ranged from 1.73" to 1.752", with most in the 1.74x" range (SAMMI max OAL is 1.760", trim length 1.750".) Headspace / shoulder length was just as bad. Using my comparator, factory ammo, or cases sized to sit perfectly in a .223 go/go-go gauge measures 1.456" - 1.457". These Lapua cases ranged from 1.422" -1.467". I also found a number of cases with very uneven mouths, obviously higher on one side than the other. During trimming, I discovered that was a result of variation in neck wall thickness visible to the naked eye. Another had a flash hole that looked like it had been swaged/punched twice, one correctly, then a second off center and not quite penetrating the web. (See pics.)
Despite most shoulders being too short, most of the cases did not go all the way into the gauge. That gave me hope that resizing might add some OAL and shoulder length, so I full-length resized everything, then trimmed, chamferred, and deburred. That helped, leaving me with ~5 cases with shoulders < 1.447" (the firing pin wouldn't even mark the first 3, loaded with minimal charges, so I pulled and discarded all 5). After resizing, 17 more cases were overly short but still fire-formable at 1.448" to 1.453". The rest I got up to at least 1.454", which is within 4/1000th of target shoulder length height for this rifle.
NOSLER
In contrast, I ordered a 50-vount box of Nosler Custom cases from a major reloading supplier. They weighed 91.2gr min, 92.0gr max (.85% variation). Shoulder / headspace was 1.456" to 1.4575" and OAL was 1.747" to 1.452" -- in other words, both at +/- 1/1000th of SAAMI specs. Case mouths all perfectly trimmed, chamferred, and deburred, with primer pockets square, uniform, and good flash holes that yield no shavings to my uniformer. In short, they were almost ad good out of the box as my tedious single-stage case prep yields.
THOUGHTS?
I have only fired half of the Lapua cases a single time, mainly to get them in shape for load testing and accuracy. Maybe they will be more durable than the Nosler brass. However, this experience has me inclined to order more Nosler brass and not search for any more Lapua.
Of note, I also ordered 100 Lapua .308Win cases from the same supplier, and (without having measured shoulders yet) appear as precise and uniform as the Nosler .223 brass.
If the Lapua brass was not headstamped and had not been in a sealed box, I would suspect counterfeit or rejected cases. Anybody ever had an experience like that with Lapua brass?
[Edited to correct decimal]
I purchased a 100-count of new Lapua .223 brass on Gunbroker. Weight consistency was decent at 92.2 min - 93.4 max before case prep (1.3% variation). Then I started measuring and prepping.
OAL's ranged from 1.73" to 1.752", with most in the 1.74x" range (SAMMI max OAL is 1.760", trim length 1.750".) Headspace / shoulder length was just as bad. Using my comparator, factory ammo, or cases sized to sit perfectly in a .223 go/go-go gauge measures 1.456" - 1.457". These Lapua cases ranged from 1.422" -1.467". I also found a number of cases with very uneven mouths, obviously higher on one side than the other. During trimming, I discovered that was a result of variation in neck wall thickness visible to the naked eye. Another had a flash hole that looked like it had been swaged/punched twice, one correctly, then a second off center and not quite penetrating the web. (See pics.)
Despite most shoulders being too short, most of the cases did not go all the way into the gauge. That gave me hope that resizing might add some OAL and shoulder length, so I full-length resized everything, then trimmed, chamferred, and deburred. That helped, leaving me with ~5 cases with shoulders < 1.447" (the firing pin wouldn't even mark the first 3, loaded with minimal charges, so I pulled and discarded all 5). After resizing, 17 more cases were overly short but still fire-formable at 1.448" to 1.453". The rest I got up to at least 1.454", which is within 4/1000th of target shoulder length height for this rifle.
NOSLER
In contrast, I ordered a 50-vount box of Nosler Custom cases from a major reloading supplier. They weighed 91.2gr min, 92.0gr max (.85% variation). Shoulder / headspace was 1.456" to 1.4575" and OAL was 1.747" to 1.452" -- in other words, both at +/- 1/1000th of SAAMI specs. Case mouths all perfectly trimmed, chamferred, and deburred, with primer pockets square, uniform, and good flash holes that yield no shavings to my uniformer. In short, they were almost ad good out of the box as my tedious single-stage case prep yields.
THOUGHTS?
I have only fired half of the Lapua cases a single time, mainly to get them in shape for load testing and accuracy. Maybe they will be more durable than the Nosler brass. However, this experience has me inclined to order more Nosler brass and not search for any more Lapua.
Of note, I also ordered 100 Lapua .308Win cases from the same supplier, and (without having measured shoulders yet) appear as precise and uniform as the Nosler .223 brass.
If the Lapua brass was not headstamped and had not been in a sealed box, I would suspect counterfeit or rejected cases. Anybody ever had an experience like that with Lapua brass?
[Edited to correct decimal]
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