270 loads

sirrah243 · January 4, 2011, 04:09 PM

I'm working up a load for my Rem 700 ADL (22" barrel)

I'm loading H4831SC behind Sierra 130gr. Pro Hunters.

My Nosler manual shows 62.5-66.5Gr. with 62.5 being the most accurate.
Lee 56.-60.
Hodgons 54.-60.
These are all recent manuals.

I've never seen starting points vary so much.

Where do I start?

parttime · January 4, 2011, 04:46 PM

I believe you made a mistake by the readings from the Nosler guide. It has the charge weights that you quoted listed in the 270 WINCHESTER SHORT MAGNUM section, not the 270 Winchester. In the section for 270 Winchester it lists weights of 55.0 to 59 grn of H4831sc for THEIR 130 grain bullets. The Sierra manual has weights of 52.1 to 59.2 grn. for the bullet that you have selected.

700cdl · January 4, 2011, 05:15 PM

Its not that difficult to make a mistake between cartridge data these days with so many that differ only by minor variations in discription. However, it can have a profound effect on what happens when you discharge that round. All one can say is, double check the data you are refrencing, looking for key phrases.
I've been loading for the .270 win. for a long time using the same bullet as well. My favorite powder for the .270 win. is H1000 because it provides an accurate result due to the high density charge. I also like RL19 and have super good performance with it as well. I've made near mistakes with many cartridges that I have loaded for many years, .357 mag. v.s. .357 max, 7mm rem. mag. v.s. 7mm rem. ultra mag, and so on. I was fortunate in that I noticed my mistake before continuing. On one occasion I had contacted a manufacturer's expert advice on a cartridge data question for the .357 mag. and he sent me data for the .357 max by mistake, so even the experts make this mistake from time to time.

DANNY-L · January 4, 2011, 05:38 PM

My Rem 700 likes 130gr.nosler bt,cci 200, 54.6gr. imr 4350, and also just about any other 130gr.bullet I load.

sirrah243 · January 4, 2011, 07:08 PM

Thanks for pointing that out guys. Thats why I come here.

reloader28 · January 4, 2011, 11:16 PM

I thought I was using that same setup. I was wrong.

I'm using IMR 4831 with that bullet. 58gr from my gun. It is a HOT load according to my books, but it shoots a 1/2" groups at 100yd

Never have used it hunting or shooting. I worked up the load, loaded 200, and it's been sitting ever since. But I have it if I need it.

FrankenMauser · January 5, 2011, 04:17 PM

I have edited your post, and added a hint as to where your starting point should be:

Quote:

Originally Posted by sirrah243

I'm working up a load for my Rem 700 ADL (22" barrel)

I'm loading H4831SC behind Sierra 130gr. Pro Hunters.

My ~~Nosler~~ manual shows 62.5-66.5Gr. with 62.5 being the most accurate.
~~Lee~~ 56.-60.
~~Hodgons~~ 54.-60.
These are all recent manuals.

I've never seen starting points vary so much.

Where do I start?

If you're using Sierra bullets, you need to be using Sierra data. If you don't, you should at least understand the type of data you are getting out of the manuals you own.

Lee data is compiled. They don't do any of their own testing for solid copper or coper jacketed bullets. In some cases, the data has even been averaged, or calculated (with no actual testing done). It is a good backup manual, but shouldn't be a primary.

Nosler data is rarely in the same ballpark as other manuals. It is only useful for their bullets. If you continually try to use their data for other components, it will get you into trouble.

Pick up the Sierra manual.

January 4, 2011, 04:09 PM	#1
sirrah243 Member Join Date: September 25, 2010 Location: Mineral Wells, Palo Pinto County, Texas Posts: 17	270 loads I'm working up a load for my Rem 700 ADL (22" barrel) I'm loading H4831SC behind Sierra 130gr. Pro Hunters. My Nosler manual shows 62.5-66.5Gr. with 62.5 being the most accurate. Lee 56.-60. Hodgons 54.-60. These are all recent manuals. I've never seen starting points vary so much. Where do I start?

January 4, 2011, 04:46 PM	#2
parttime Member Join Date: August 25, 2009 Location: Minnesota Posts: 82	I believe you made a mistake by the readings from the Nosler guide. It has the charge weights that you quoted listed in the 270 WINCHESTER SHORT MAGNUM section, not the 270 Winchester. In the section for 270 Winchester it lists weights of 55.0 to 59 grn of H4831sc for THEIR 130 grain bullets. The Sierra manual has weights of 52.1 to 59.2 grn. for the bullet that you have selected. __________________ The wants of the many DO NOT outweigh my needs.

January 4, 2011, 05:15 PM	#3
700cdl Senior Member Join Date: December 6, 2010 Posts: 216	Its not that difficult to make a mistake between cartridge data these days with so many that differ only by minor variations in discription. However, it can have a profound effect on what happens when you discharge that round. All one can say is, double check the data you are refrencing, looking for key phrases. I've been loading for the .270 win. for a long time using the same bullet as well. My favorite powder for the .270 win. is H1000 because it provides an accurate result due to the high density charge. I also like RL19 and have super good performance with it as well. I've made near mistakes with many cartridges that I have loaded for many years, .357 mag. v.s. .357 max, 7mm rem. mag. v.s. 7mm rem. ultra mag, and so on. I was fortunate in that I noticed my mistake before continuing. On one occasion I had contacted a manufacturer's expert advice on a cartridge data question for the .357 mag. and he sent me data for the .357 max by mistake, so even the experts make this mistake from time to time.

January 4, 2011, 05:38 PM	#4
DANNY-L Member Join Date: April 1, 2010 Location: way upstate ny Posts: 71	My Rem 700 likes 130gr.nosler bt,cci 200, 54.6gr. imr 4350, and also just about any other 130gr.bullet I load.

January 4, 2011, 07:08 PM	#5
sirrah243 Member Join Date: September 25, 2010 Location: Mineral Wells, Palo Pinto County, Texas Posts: 17	Thanks for pointing that out guys. Thats why I come here.

January 4, 2011, 11:16 PM	#6
reloader28 Senior Member Join Date: October 13, 2009 Location: nw wyoming Posts: 1,061	I thought I was using that same setup. I was wrong. I'm using IMR 4831 with that bullet. 58gr from my gun. It is a HOT load according to my books, but it shoots a 1/2" groups at 100yd Never have used it hunting or shooting. I worked up the load, loaded 200, and it's been sitting ever since. But I have it if I need it.