30 sherman magnum

elkaholic

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Any issues with a carbon ring or fouling from rl33? I have thought about trying it in my nm but don't know if I should. So rl33 is getting better velocity than n570?
No issues yet but we'll see?
RL33 usually gets a little more velocity in cases where you can pressure it out but N570 isnt too far behind with about 5-6 grains less charge.
 

Mazdayasna

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Oct 16, 2017
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This was formally the 300 PRC S.I. for those who missed it.
I got out a couple days ago to do some more testing and the mirage shooting over the bright snow was terrible so I couldn't really accomplish as much as I wanted to. I did get some velocities and enough data to make another run on a couple loads when conditions warrant.
I ran some 225 eldm's at 3059 with N570 that showed potential
I also shot some 215 Bergers at 3167' that also looked like they need more testing.
Below are pics of the brass which didn't show any over pressure and a pic of the 215 Berger group. I think in better condition this load would cut a single hole.View attachment 127740 View attachment 127741
Dear Elk, have you done any formal PSI analysis on your Loads?
 

berg1985

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Jan 18, 2015
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Rhovee was this for a 28 Nosler? Barrel length and bullet weight? I was looking to do a 28 nosler or 28sherman,
Right now my 7/300 with 25” 8.5T with 180s I’m running 3187fps at a high node That’s 74.2 H1000 with Fed215
 

berg1985

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Jan 18, 2015
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You should run 215’s and H1000 up to pressure and see how it compares to 30/28 Nosler. My accuracy load was 86 grains H1000 for 3106 average. Pressure was 3140 at 87 grains
Rhovee was this for a 28 Nosler? Barrel length and bullet weight? I was looking to do a 28 nosler or 28sherman,
Right now my 7/300 with 25” 8.5T with 180s I’m running 3187fps at a high node That’s 74.2 H1000 with Fed215
 

Rhovee

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Jun 29, 2017
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The 30/28 Nosler is a 28 Nosler case necked up to 30 Cal. This was originally done to achieve higher volume from a 30 Nosler. It gave about 3 grains more capacity than a 30 Nosler. With ADG brass now, a 30 Nosler can typically handle the pressure needed for higher node.
 

rockwallraider

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Dec 28, 2007
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just ordered some adg 30sm brass. anybody compared it to hornady brass yet? meaning as far as case capacity
 

elkaholic

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IMG_20200517_202936972.jpg
IMG_20200518_170631457.jpg
Here is some data from a Satterlee test at 100 yards followed by a Ladder test at 375 using the same loads.
The ladder had shifting winds which accounted for the horizontal spread.
 

Blaster01

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Jan 26, 2020
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Location
Salem
Has anyone shot or have any data for the 28 Sherman mag? From what I can tell it’s the 30sm necked down to 28. Wondering about velocities with the 195 and barrel life as well but I can’t find any info. Is there a page that I can’t find on it?
 

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