I'm stumped?? - Page 2

rsnell · June 26, 2022, 03:29 PM

I used the following load in a Remington Model 7 rifle, Remington cases, and Federal 210 primers. The brass was full length sized and the powder was 40.0 grains of IMR 4064. COAL was 2.775 inches. I had a 1 shot group at 0.76 inches and all the five shot groups were under 1 inch. This load can probably be improved. It was developed before I understood measuring the distance to the lands, seating depth, and bumping the shoulder back 0.002-0.003 inches. Winchester primers and Nosler 140 grain bullets also worked just as well.

Bart B. · June 26, 2022, 05:10 PM

Accuracy is best defined as the largest groups fired.

reynolds357 · June 26, 2022, 07:41 PM

Quote:

Originally Posted by GeauxTide

I'm with the camp on long bullets in short cases. I got a Hornady OAL guage for all my rifles. MAGIC.

I am in the camp of long bullets barely sticking into short cases because I cut very deep throats.

riverratt · June 28, 2022, 02:52 AM

Sorry it took a wile for me to update the results, I suffered a knee injury at work a couple weeks ago and was not able to walk for a while.

I followed Std7mags advice and ended up with 30 inch pounds up front and 25 inch pounds on the rear screw when it pulled the groups together in a beautiful little cloverleaf group. I ran 5, 5 shot groups letting the barrel cool completely between groups and ended up with the smallest group being .53 and the largest being .87 inches. The average size of these 5 groups was .68".

I wish to thank all involved in trying to resolve this issue and I definitely learned something new.

Metal god · June 28, 2022, 01:29 PM

Awesome ;-) , glad to hear it worked out. There’s a lot of shooters that don’t think action screw torque matters but it does . Make sure you clean the screws with a degreaser then use some blue loctite on them to keep um put

std7mag · July 3, 2022, 06:13 AM

Riverrat,

Glad things worked out for you!

Bear in mind, i have 5 Savage rifles and all like a different torque setting.
I clean the screws as MetalGod suggests, but i don't use Loctite on my action screws.

I have one set at 15inlb & have never had an issue.

If you do use Loctite, i suggest #222. The purple low strength.
Blue 242 works in a pinch, but is harder to unscrew should you need to.
I also use 222 on scope bases & rings.

Scorch · July 5, 2022, 08:05 PM

In 30 years as a gunsmith, every time a rifle shot two groups it was due to loose scope ring or base screws. Every time.

std7mag · July 10, 2022, 08:15 PM

Well, Scorch.
In THIS instance it would appear to be action screw torque.

Bart B. · July 11, 2022, 11:08 AM

Quote:

Originally Posted by akinswi

Did you watch his Video??? He doesn’t jam his bullets he finds the Jam then backs off .02 off that then starts adjusting his seating depth .003 until he finds two consistent nodes.

The OP hasnt found the right barrel harmonics for his load. His ES/SD look good but barrel harmonics are off

A given barrel has the same harmonics (vibration frequencies) across all loads because its shape is the same for all of them.

Different loads make bullets leave at different bore angles to the line of sight.

Ideally, slower bullets should leave at higher angles than faster ones.

Metal god · July 13, 2022, 08:21 PM

Quote:

In THIS instance it would appear to be action screw torque.

and in my case as well . I went through every possible issue two or three times including scope , rings , parallax etc . It was only after posing the problem here or another form did someone suggest it was an action screw problem . Which instantly fixed the problem .

June 26, 2022, 05:10 PM	#27
Bart B. Senior Member Join Date: February 15, 2009 Posts: 8,927	Accuracy is best defined as the largest groups fired. Last edited by Bart B.; June 26, 2022 at 05:48 PM.

June 28, 2022, 01:29 PM	#30
Metal god Senior Member Join Date: April 10, 2012 Location: San Diego CA Posts: 6,876	Awesome ;-) , glad to hear it worked out. There’s a lot of shooters that don’t think action screw torque matters but it does . Make sure you clean the screws with a degreaser then use some blue loctite on them to keep um put __________________ If Jesus had a gun , he'd probably still be alive ! I almost always write my posts regardless of content in a jovial manor and intent . If that's not how you took it , please try again .

July 3, 2022, 06:13 AM	#31
std7mag Senior Member Join Date: June 23, 2013 Location: Central Taxylvania.. Posts: 3,609	Riverrat, Glad things worked out for you! Bear in mind, i have 5 Savage rifles and all like a different torque setting. I clean the screws as MetalGod suggests, but i don't use Loctite on my action screws. I have one set at 15inlb & have never had an issue. If you do use Loctite, i suggest #222. The purple low strength. Blue 242 works in a pinch, but is harder to unscrew should you need to. I also use 222 on scope bases & rings. __________________ When our own government declares itself as "tyrannical", where does that leave us??!! "Januarary 6th insurrection". Funny, I didn't see a single piece of rope...

July 5, 2022, 08:05 PM	#32
Scorch Senior Member Join Date: February 13, 2006 Location: Washington state Posts: 15,248	In 30 years as a gunsmith, every time a rifle shot two groups it was due to loose scope ring or base screws. Every time. __________________ Never try to educate someone who resists knowledge at all costs. But what do I know? Summit Arms Services

July 10, 2022, 08:15 PM	#33
std7mag Senior Member Join Date: June 23, 2013 Location: Central Taxylvania.. Posts: 3,609	Well, Scorch. In THIS instance it would appear to be action screw torque. __________________ When our own government declares itself as "tyrannical", where does that leave us??!! "Januarary 6th insurrection". Funny, I didn't see a single piece of rope...

June 26, 2022, 03:29 PM	#26
rsnell Member Join Date: January 25, 2011 Location: Cleveland, TN Posts: 74	I used the following load in a Remington Model 7 rifle, Remington cases, and Federal 210 primers. The brass was full length sized and the powder was 40.0 grains of IMR 4064. COAL was 2.775 inches. I had a 1 shot group at 0.76 inches and all the five shot groups were under 1 inch. This load can probably be improved. It was developed before I understood measuring the distance to the lands, seating depth, and bumping the shoulder back 0.002-0.003 inches. Winchester primers and Nosler 140 grain bullets also worked just as well.

June 28, 2022, 02:52 AM	#29
riverratt Senior Member Join Date: February 21, 2014 Posts: 314	Sorry it took a wile for me to update the results, I suffered a knee injury at work a couple weeks ago and was not able to walk for a while. I followed Std7mags advice and ended up with 30 inch pounds up front and 25 inch pounds on the rear screw when it pulled the groups together in a beautiful little cloverleaf group. I ran 5, 5 shot groups letting the barrel cool completely between groups and ended up with the smallest group being .53 and the largest being .87 inches. The average size of these 5 groups was .68". I wish to thank all involved in trying to resolve this issue and I definitely learned something new.