Load design issues….

Nathan · December 19, 2022, 06:11 PM

I’m playing around with a quasi wildcat….30 Herrett.

Sure, I could look at load data, and try to fit it to my gun, but the real problem is so many powders are hard to find.

So, I picked up some 1680 and No 11fs based on what I see in Quickload.

I’m pretty sure No11fs is the place to start. Case fill is only around 80%, but burn % is closer to 98%.

At what point is low case fill a concern, or is it ever a concern? Maybe I’ll call Hodgdon.

Shadow9mm · December 19, 2022, 07:06 PM

pretty sure its more than a quasi wildcat you have by the tail. Checked my manuals, no data, good luck.

mikejonestkd · December 19, 2022, 08:09 PM

here is some data for reference
https://www.hornady.com/assets/site/...30-herrett.pdf

https://shootersreference.com/reloadingdata/30-herrett/

Nothing for the powders that you have though

Nathan · December 20, 2022, 12:42 AM

Hodgdon came through with some good advice on powders….they are always worth a call.

bbqncigars · December 22, 2022, 07:59 PM

The Reloading Assistant app on my phone shows H110, IMR4227, and IMR3031 for this cartridge. I may still have data written down from when I was suffering through loading this, but this should narrow it down a bit.

black mamba · December 24, 2022, 09:25 AM

My old Sierra manual shows 30 Herrett loads for 2400, 296, H4227, and N200 for both 125 gr and 150 gr bullets. PM me if you want their start and max charge weights.

December 19, 2022, 06:11 PM	#1
Nathan Senior Member Join Date: July 1, 2001 Posts: 6,334	Load design issues…. I’m playing around with a quasi wildcat….30 Herrett. Sure, I could look at load data, and try to fit it to my gun, but the real problem is so many powders are hard to find. So, I picked up some 1680 and No 11fs based on what I see in Quickload. I’m pretty sure No11fs is the place to start. Case fill is only around 80%, but burn % is closer to 98%. At what point is low case fill a concern, or is it ever a concern? Maybe I’ll call Hodgdon.

December 19, 2022, 07:06 PM	#2
Shadow9mm Senior Member Join Date: March 21, 2012 Location: Indianapolis, IN Posts: 3,977	pretty sure its more than a quasi wildcat you have by the tail. Checked my manuals, no data, good luck. __________________ I don't believe in "range fodder" that is why I reload.

December 19, 2022, 08:09 PM	#3
mikejonestkd Senior Member Join Date: January 3, 2006 Location: Brockport, NY Posts: 3,717	here is some data for reference https://www.hornady.com/assets/site/...30-herrett.pdf https://shootersreference.com/reloadingdata/30-herrett/ Nothing for the powders that you have though __________________ You are the bows from which your children as living arrows are sent forth.

December 22, 2022, 07:59 PM	#5
bbqncigars Senior Member Join Date: February 1, 2009 Location: Iowa Posts: 525	The Reloading Assistant app on my phone shows H110, IMR4227, and IMR3031 for this cartridge. I may still have data written down from when I was suffering through loading this, but this should narrow it down a bit. __________________ "Of all the things I've lost, I miss my mind the most." A. Brilliant

December 20, 2022, 12:42 AM	#4
Nathan Senior Member Join Date: July 1, 2001 Posts: 6,334	Hodgdon came through with some good advice on powders….they are always worth a call.

December 24, 2022, 09:25 AM	#6
black mamba Senior Member Join Date: September 13, 2011 Location: SW Florida Posts: 890	My old Sierra manual shows 30 Herrett loads for 2400, 296, H4227, and N200 for both 125 gr and 150 gr bullets. PM me if you want their start and max charge weights.