tweaking a load for group size

squirrelbait · Posted: Fri Sep 23, 2005 10:26 am Post subject: tweaking a load for group size

Been reload for some time.......it's the only way to go if you like to shoot.
I remember at some point......it's an age thing maybe, that there were general "guide lines" for how to tweak your powder charge depending on shape of the fired group, i.e. if it was strung out vertically then reduce/increase charge? Any words of wisdom on this?

DallanC · Site Admin Joined: Jan 18, 2005 Posts: 3572 Location: Utah

Welcome to the site squirrelbait.

IMO pure horizonal or vertical groups tend to indicate a barrel bedding problem. I had a .270 that had horrible horizonal strings. I removed the barrel from the stock and ground down the pressure point Remington puts on their M700's, reassembled and took it out to shoot. I was rewarded with 1MOA groups. After a shot the barrel would come to rest at different points along the horizonal pressure point... removing that allowed for the barrel to return to its natural point.

I havent noticed personally, strings associated with a specific powder amount... groups either open up or remain tight I've found. Perhaps someone here might have some different advice though.

-DallanC

shrpshtrjoe

Howdy. Dallan probably hit the nail on the head Bonk

But it could also be not letting the barrel cool enough Shooting

i have seen hot barrels string groups as well. Good luck !!
Joe

GroovyJack · Member Joined: May 21, 2005 Posts: 621 Location: Bama

Welcome sqwerlly , and yes I remember that .. Jeesh you must be an old poot too , cause it has been many years ago that I saw that .. But dont ask anymore cause I forgot Confused

Jack

Bushmaster

Oh hell! I remember that. too but not enough to help you...(And I ain't that old. sooo watch it!!!) Evil or Very Mad

ghall · Member Joined: Sep 08, 2005 Posts: 32 Location: Idaho

I heard that it could be the primer, that causes the strings.

SwampFox

I here it is CRS that causes all of this..... Laughing

Bushmaster

Let's see, "Chief Cook and.....SwampFox. The last entry was in September and it took you this long to think of and respond to this string??? Speakin' of CRS (and I know what that stands for). And you are how old??? ROFL

GroovyJack · Member Joined: May 21, 2005 Posts: 621 Location: Bama

Who u callin a chief cook , I werent no cook or jack o dust .. I were a GUNNER ..
Jack

Bushmaster

And, Jack...You also can't read. Check SwampFoxes Profile...Gunnersmates and Bos'nsmates...Not much difference there that I can see....

GroovyJack · Member Joined: May 21, 2005 Posts: 621 Location: Bama

Yah well Bushy I dont read peeples profiles too much .. May find old ladies boyfriend in there ..
BoatSwain Mate ?? How dare yeh !!
Big difference between fowled anchors and crossed cannons ..
Sides I didnt sit next to a cockswain like some folks here ..
Least you was a semi fresh air hole snipe ..
Jack

Bushmaster

Nope...Absolutely a Blackshoe Snipe. Main propusion Diesel...Destroyer, submarine, submarine tender, harbor tug, Hydrofoil, torpedo test firing ships, small boats and a mine sweeper. One non-diesel ship in there too. An ammunition ship (steam). Crossed anchors, crossed cannons. from a distance (and I was) they look the same to me...

GroovyJack · Member Joined: May 21, 2005 Posts: 621 Location: Bama

Better keep yur distance .. Very Happy

Yeah sounds like you was a genuine " hole snipe " Insane

Who hijacked this ?? Off Topic

Jack

SwampFox

Ha, ho, ha, ha
Just saw the post yesterday, but point well made, I think,,,, now what was that you were saying..... um zzzzzz. Oh, oh, yeh, awake again, Chief cook and bottle washer refers to being a leader of men, ah, well, actually women. I own a couple of companies, we employ all women, so I am boss to a gaggle of females. They think I am a wonderful human being, hum, me thinks it is near Christmas and near time for their bonus?

I wore the crossed cannons for a few years, 40 years ago. At the time, I was a young sargent/chief surveyor in the 101st. Recondo school in 67, then spent most of my time as an FO and in the woods playing with the indians. I will be 60 in a few months.

Bushmaster

Humph!!! SwampFox is just a kid....And Yup Jack...I am a genuine "Hole Snipe". Only came out after dark....