You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an alternative browser.
You should upgrade or use an alternative browser.
300 Sherman
- Thread starter Nathan
- Start date
First I've heard of yet another answer to an unasked question. I do see that Sherman does not put any load data on their site. They do show several variations of cartridge.
The cartridges and the lack of load data were discussed, very briefly, on these pages way back in 2013. It won't help though.
https://thefiringline.com/forums/showthread.php?t=524318
There is a bit of completely unknown source data(likely not properly tested too) here via Sherman's site here.
https://www.longrangehunting.com/threads/sherman-wildcat-reloading-data-is-here.213658/
The cartridges and the lack of load data were discussed, very briefly, on these pages way back in 2013. It won't help though.
https://thefiringline.com/forums/showthread.php?t=524318
There is a bit of completely unknown source data(likely not properly tested too) here via Sherman's site here.
https://www.longrangehunting.com/threads/sherman-wildcat-reloading-data-is-here.213658/
Let me help you with the question... people love 30-06. Then people said what if I could have more power for elk, moose, bear and maybe longer range.
Then the gun companies made 300 Win Mag. Great! Except, it had way more recoil and lost a round in the mag. Then the belt issues...
So, how do I get 100-150FPS more out of a 30-06? Without the negatives?
Then the gun companies made 300 Win Mag. Great! Except, it had way more recoil and lost a round in the mag. Then the belt issues...
So, how do I get 100-150FPS more out of a 30-06? Without the negatives?
https://shermanwildcatcartridges.com/300-sherman
I think Sherman is pretty close to the 30 Gibbs.
They shorten neck blew case out like AI, maybe gained 5/6gr more case capacity.
https://loaddata.com/Cartridge/30-Gibbs/907
I shoot 35 WhelenAI and next one is going to be Brown Whelen which has shorter neck.
I think Sherman is pretty close to the 30 Gibbs.
They shorten neck blew case out like AI, maybe gained 5/6gr more case capacity.
https://loaddata.com/Cartridge/30-Gibbs/907
I shoot 35 WhelenAI and next one is going to be Brown Whelen which has shorter neck.
OK My trusty Nosler Load book shos RE-22 will toss a 200 gr partition at 2768 fps with a 94 % case fill with a 30-06 Ackley.
The 32 fps its short is within "margin of error"Maybe newer gen powders will get you there.
And,every rifle s different.Of course,many an AI shooter wwill achieve velocities not in the book,prudent or not.
Not suggesting ignoring max,but appropriately,there is some margin of error.
For example,it CAN be that the guy who keeps records, who buys 8 lb jugs of powder,always using the same lot, bys 500 virgn brass rather than nrange pickup,requires less margin than the guy who buys 1 lb at a time,with a different lot each time.
I've used my chrono to watch velocity gains to coincide with charge increases to find my "max" when I gained less velocity with a charge ncrease.
BTW,these usually agree very closely with published data
And,if 4 loadings gets me looser primer pockets,its too hot.
I'm not avocating being reckless,but a different load book may show variance enough for 32 fps.
Grand scheme of things32 fps won't make or break anything.Its just a number. What if a foot was only 11 inches,,or a second was 1.01 second?
We pick a number off a page,but what does it mean?Does it gain you 25 yds range?
The 32 fps its short is within "margin of error"Maybe newer gen powders will get you there.
And,every rifle s different.Of course,many an AI shooter wwill achieve velocities not in the book,prudent or not.
Not suggesting ignoring max,but appropriately,there is some margin of error.
For example,it CAN be that the guy who keeps records, who buys 8 lb jugs of powder,always using the same lot, bys 500 virgn brass rather than nrange pickup,requires less margin than the guy who buys 1 lb at a time,with a different lot each time.
I've used my chrono to watch velocity gains to coincide with charge increases to find my "max" when I gained less velocity with a charge ncrease.
BTW,these usually agree very closely with published data
And,if 4 loadings gets me looser primer pockets,its too hot.
I'm not avocating being reckless,but a different load book may show variance enough for 32 fps.
Grand scheme of things32 fps won't make or break anything.Its just a number. What if a foot was only 11 inches,,or a second was 1.01 second?
We pick a number off a page,but what does it mean?Does it gain you 25 yds range?
Last edited:
Picky,Picky!! No.24 in. However!!
This is Nosler's 5th edition,for traceability..A Mr Pat Mundy wrote the intro to the cartridge on page 313. I quote :
"Switch to 180 gr bullets and slow powder and velocity can incease to well over 2900 fps"
The data shows 2985 with RE 22 and a 180
With your criteria of a .473 case heas...it comes real close to what you ask for.
This is Nosler's 5th edition,for traceability..A Mr Pat Mundy wrote the intro to the cartridge on page 313. I quote :
"Switch to 180 gr bullets and slow powder and velocity can incease to well over 2900 fps"
The data shows 2985 with RE 22 and a 180
With your criteria of a .473 case heas...it comes real close to what you ask for.
Last edited:
You’re not wrong. What is wrong with 300 Sherman, I would ask....
Looks like he is ordering Hornady dies. Reamer rental is reasonable.
Case forming is:
Get some 270 cases.
Expand to 30 caliber....should be one step with new brass.....maybe 2, if I get neck splits.
Load up mild load with bullet in the lands of cheapest 30 cal bullet. Maybe 110’s or more likely the 150’s.
Then run through the Annealeez
Reload as usual
30-06 AI has lower performance, but similar cost dies.
Some will say 300WM, but who needs the belt and the blast! That diameter will cost a round in the mag.
Looks like he is ordering Hornady dies. Reamer rental is reasonable.
Case forming is:
Get some 270 cases.
Expand to 30 caliber....should be one step with new brass.....maybe 2, if I get neck splits.
Load up mild load with bullet in the lands of cheapest 30 cal bullet. Maybe 110’s or more likely the 150’s.
Then run through the Annealeez
Reload as usual
30-06 AI has lower performance, but similar cost dies.
Some will say 300WM, but who needs the belt and the blast! That diameter will cost a round in the mag.
I know nothing about the 30 Sherman. As far as I know,Sherman was Peabody's sidekick on the Bullwinkle show.
Follow your bliss. Enjoy!
I do suggest that before you invest heavily,come up with any die/cartridge brass combination that will allow you to experiment with necking brass up.
We are not concerned about creating a known cartridge. The exercise is puely about shoving an expander plug through a case neck to dee how well a decapping spindle and expander plug "necks up". See if you like the results.
Follow your bliss. Enjoy!
I do suggest that before you invest heavily,come up with any die/cartridge brass combination that will allow you to experiment with necking brass up.
We are not concerned about creating a known cartridge. The exercise is puely about shoving an expander plug through a case neck to dee how well a decapping spindle and expander plug "necks up". See if you like the results.
HIBC, You need to finish Quote.
This is Nosler's 5th edition,for traceability..A Mr Pat Mundy wrote the intro to the cartridge on page 313. I quote :
I rely on 150gr grain BT for deer, but velocity is only about 100fps faster than standard 30-06. Don't get me wrong, the load hits very hard, even at long range. "Switch to 180 gr bullets and slow powder and velocity can incease to well over 2900 fps --Plenty of thump for elk. This velocity results in energy comparable to several of the 300 magnums with less recoil."
This is Nosler's 5th edition,for traceability..A Mr Pat Mundy wrote the intro to the cartridge on page 313. I quote :
I rely on 150gr grain BT for deer, but velocity is only about 100fps faster than standard 30-06. Don't get me wrong, the load hits very hard, even at long range. "Switch to 180 gr bullets and slow powder and velocity can incease to well over 2900 fps --Plenty of thump for elk. This velocity results in energy comparable to several of the 300 magnums with less recoil."
Do you know if the 30-06 lower pressure limit is about brass strength or does it consider the Garand,the Win 95,and the fact some folks shoot questionable mil-surps...such as low number Springfields and Eddystones?
I would guess there is no difference in brass strength.
I have noticed that folks compare cartridges based on published velocities at SAAMI pressures.
The 7mm Rem mag is another cartridge that appears handicapped by a lower SAAMI rating
I would guess there is no difference in brass strength.
I have noticed that folks compare cartridges based on published velocities at SAAMI pressures.
The 7mm Rem mag is another cartridge that appears handicapped by a lower SAAMI rating
Don Fischer
New member
I think I understand the idea of wildcatt's, shoot I have one! But I don't understand the 300mag class at all. If a 30-06 won't do it, a 300 mag probably will be short stepping also. It has always seemed to me the logical step up from 30-06 would be the 338 mag. Suddenly your into something that has factory weight bullet's the 30 cal doesn't get to. I would not hesitate to use a 30-06 with a 200gr load on anything in N. America. But on dangerous game in N. America I wouldn't think it would match a 338 mag with a 250 gr bullet. Quite possibly even a 338-06 with a 250 gr bullet.
Problem with 30-06 it has low spec pressure than 270/308. I just guess but don't think Nosler upped the pressure for 30-06AI. They upped load 1.5 gr more than 30-06 for 200gr bullet using same powder/bullet/barrel(Lilja)/twist/length.
Sherman upped pressure maybe to 65K.
This is the issue... we don’t know the AI or Sherman pressure. What I read/hear is that the Sherman’s straight wall can handle more pressure. Also, it moves the shoulder forward and makes it steeper....this gives quite a bit more capacity.
If his Hornady bushing dies come in at a reasonable price, then we are getting more than the AI with little penalty!
Starline, RWS and Norma all make good brass.