Shawn Carlock
Sponsor
After a couple of years of exploring options and testing samples we have finally found match quality brass for the 338 Edge. The sample I received was a sample of the first 7000 pieces so this is a run and not just a sample where the sample could differ from the run in terms of quality etc.
Testing 338 Edge brass sample:
REMINGTON FACTORY
Weighed 20 Remington factory cases:
Heavy – 278.8 grains
Light – 273.0 grains
ES – 5.8 grains
Primer pockets – tapered from .2115" to .2140"
Average H2O capacity of fired case – 114.3 grains
Head space of unfired brass – 3.012"
Head space of fired brass – 3.015"
SAMPLE
Weighed 20 SAMPLE cases:
Heavy – 282.5 grains
Light – 280.2 grains
ES – 2.3 grains
Primer pockets – tapered from .2095" to .2110"
Average H2O capacity of fired case – 115.5 grains
Head space of unfired brass – 3.017" ( I sized this down to test but should be .003"-.005" shorter )
Load Testing:
Bullet: 300 grain Sierra Matchkings
Primer: CCI 250
OAL: 3.795" (2.975" w #2 comp)
Powder: H1000
90.0 gr 2886 fps – no pressure
91.0 gr 2896 fps – very faint ejector marks
92.0 gr 2952 fps – very faint ejector marks
93.0 gr 2989 fps – ejector mark, slight bolt lift resistance
94.0 gr 3015 fps – heavy ejector mark smearing, bolt lift resistance but still opened by finger lift
Durablity testing:
Test Load – 90 grains H1000, 300 SMK, 2863 fps average velocity, max safe load
Fired this load on the same case 20 times
Brass grows in length .002" or so each firing
Kept brass length between 2.820" and 2.835"
Primer pockets never loosened and detectable amount still good and tight after 20 firings.
Web stretched .001" on first firing and never went more.
It took 5 or 6 firings for the shoulder to "square" at the body shoulder junction (good stout brass).
Casehead after 20 firings - primer pockets still tight!!!
The brass is quite impressive and a vast improvement over the Remington or Nosler brass currently available to us. The only down side is the cost it will run $300.00 a 100 pieces. In the long run where Rem brass lasts around 5-6 firings with the pockets being loose afte 2-3 it is actually "the deal" as 100 pieces will last the life of the barrel. We are taking preorders for these but delivery dates are looking like 8-10 weeks for the first run.
Shawn
Testing 338 Edge brass sample:
REMINGTON FACTORY
Weighed 20 Remington factory cases:
Heavy – 278.8 grains
Light – 273.0 grains
ES – 5.8 grains
Primer pockets – tapered from .2115" to .2140"
Average H2O capacity of fired case – 114.3 grains
Head space of unfired brass – 3.012"
Head space of fired brass – 3.015"
SAMPLE
Weighed 20 SAMPLE cases:
Heavy – 282.5 grains
Light – 280.2 grains
ES – 2.3 grains
Primer pockets – tapered from .2095" to .2110"
Average H2O capacity of fired case – 115.5 grains
Head space of unfired brass – 3.017" ( I sized this down to test but should be .003"-.005" shorter )
Load Testing:
Bullet: 300 grain Sierra Matchkings
Primer: CCI 250
OAL: 3.795" (2.975" w #2 comp)
Powder: H1000
90.0 gr 2886 fps – no pressure
91.0 gr 2896 fps – very faint ejector marks
92.0 gr 2952 fps – very faint ejector marks
93.0 gr 2989 fps – ejector mark, slight bolt lift resistance
94.0 gr 3015 fps – heavy ejector mark smearing, bolt lift resistance but still opened by finger lift
Durablity testing:
Test Load – 90 grains H1000, 300 SMK, 2863 fps average velocity, max safe load
Fired this load on the same case 20 times
Brass grows in length .002" or so each firing
Kept brass length between 2.820" and 2.835"
Primer pockets never loosened and detectable amount still good and tight after 20 firings.
Web stretched .001" on first firing and never went more.
It took 5 or 6 firings for the shoulder to "square" at the body shoulder junction (good stout brass).
Casehead after 20 firings - primer pockets still tight!!!
The brass is quite impressive and a vast improvement over the Remington or Nosler brass currently available to us. The only down side is the cost it will run $300.00 a 100 pieces. In the long run where Rem brass lasts around 5-6 firings with the pockets being loose afte 2-3 it is actually "the deal" as 100 pieces will last the life of the barrel. We are taking preorders for these but delivery dates are looking like 8-10 weeks for the first run.
Shawn