cohunt
Well-Known Member
No clue, norma is only 1x fired and adg is new
I have norma 7rm brass and some have been loaded 5x, I have 300rum adg brass but I'm only at 1x with that cartridge
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Thoughts on adg vs norma capacity
- Thread starter cohunt
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I have norma 7rm brass and some have been loaded 5x, I have 300rum adg brass but I'm only at 1x with that cartridge
cohunt
Well-Known Member
I'm guessing more than now as even if the body is the same, the shoulder will definitely push forward once I fire them
Buckys
Well-Known Member
Resized = how much bump back?
Last time I switched brass I just did a quick ladder to be safe. Takes 8-10 cases for piece of mind. Ended up with .5 grains higher charge in the Norma brass. Woulda been fine had I not done a ladder but wasn't worth it. Stay safe brother
I also replaced my Norma 300 WSM brass with ADG.
I started 4 grs lower, worked up in .5 gr increments, settled on 2 grs less powder than the Norma.
One reason on going that much lower was to not over pressure the new brass on the 1st firing and to treat it like any new component and start low.
I started 4 grs lower, worked up in .5 gr increments, settled on 2 grs less powder than the Norma.
One reason on going that much lower was to not over pressure the new brass on the 1st firing and to treat it like any new component and start low.
Blackdog317
Well-Known Member
Did you achieve similar velocities with 2 grains less in the ADG brass?
Yes, great accuracy too.
TRexF16
Well-Known Member
Not 300 WSM, but 270 WSM - Other specs similar. I was one of the "beta testers" for ADG's LRIP run of .270 WSM. Had previously been using Norma, and my best load was with the 175 TGK (my rifle is an 8" twist).
Comparing unfired Norma to unfired ADG with the 175 TGK seated identically, water capacity was 2.7 grains more in the ADG.
Comparing once fired Norma to identically resized once-fired ADG, the ADG cases with the same bullet seating held 1.3 grains more water than the Norma. The ADG were the lightest .270 WSM cases I have ever measured (and their weight was very consistent). They weighed nearly 30 grains less than the Norma.
With the ADG cases, 61.7 grains of RL-26 under the 175 TGK was required to produce the same velocity that my standard load of 60.5/RL-26 produced in Norma cases.
All the above is counter to the "normal" reputation for ADG, but it is what it is and seems to match the OP's experience with Norma and ADG 300 WSM.
I still started low and snuck up on the target velocity (2850 FPS) and everything worked great. That's not a hot load for the WSM. Actually only about 20-30 FPS over 6.8 Western velocity.
Hope this helps.
Rex
Comparing unfired Norma to unfired ADG with the 175 TGK seated identically, water capacity was 2.7 grains more in the ADG.
Comparing once fired Norma to identically resized once-fired ADG, the ADG cases with the same bullet seating held 1.3 grains more water than the Norma. The ADG were the lightest .270 WSM cases I have ever measured (and their weight was very consistent). They weighed nearly 30 grains less than the Norma.
With the ADG cases, 61.7 grains of RL-26 under the 175 TGK was required to produce the same velocity that my standard load of 60.5/RL-26 produced in Norma cases.
All the above is counter to the "normal" reputation for ADG, but it is what it is and seems to match the OP's experience with Norma and ADG 300 WSM.
I still started low and snuck up on the target velocity (2850 FPS) and everything worked great. That's not a hot load for the WSM. Actually only about 20-30 FPS over 6.8 Western velocity.
Hope this helps.
Rex
In general, I have found that cases with heavier walls usually last longer than thin walled ones. With Lake City 7.62/308 and 30-06 brass I could usually get six or seven loads while the lighter civilian brass only three or four.
med358-boise
Well-Known Member
I would approach the question differently. Since all brass is different and while you don't want to start load development form scratch, I assume you don't want to make multiple trips to the range to "solve the problem" consider the following:
If your current load in Norma of 68 grains of powder XYZ:
Load 2 rounds at 66 and two rounds at 67 looking for pressure. Also load 3 rounds 67.6, 3 rounds at 68, and the rounds at 68.4. and see if 68 is still a good load or if your node be 67.8 or 68.2
You can of course more load variants but the above would answer your question with a lot more certainty with little investment.
If your current load in Norma of 68 grains of powder XYZ:
Load 2 rounds at 66 and two rounds at 67 looking for pressure. Also load 3 rounds 67.6, 3 rounds at 68, and the rounds at 68.4. and see if 68 is still a good load or if your node be 67.8 or 68.2
You can of course more load variants but the above would answer your question with a lot more certainty with little investment.
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