tested loads today, and need some help

[black_ump]

here are a few loads i tested they go as follows

load # 1

100 yards 168 hornady match 44gr blc2 2.8 oal 5 rounds

load #2
100 yards 180 combined technology bst's 44gr blc2 2.78 oal 5 rnds

load #3
100 yards 155 smk 45.2 blc2 2.8 oal 5 rnds

load #4
100 yards 175 smk 42.9 gr blc2 5 rnds

iam not sure which of the above i like most, every one of them has a round inside of a round at some point or they are touching really close

they arnt super tight but that could just be me behind the gun but what are your thoughs ?

the black circle is .75 in its od

and my question to you is of the above which would you deam the most accurate ? how would you test further for better results ?

next up is some subsonic loads, i aimed at the center and shot then i used my mills to measure the drop and came up and over example if it droped 2 mills and was left .5 i lived my cross hairs up and over and shot.

here are those pix

load #1

50 yards 110 sierra hp 9.5 gr clays 1 mill low 1 mill right 5 rounds.2.5 oal

load #2
50 yards 168 hornady match 10 gr clays 2.79 oal 1.5 mill low .5 mill right 5 rounds

load #3
50 yards 190 smk 10 gr clay4s 2.79 oab4l 2 mill low .5 mill right 5 rounds

 

[Hummer]

Re: tested loads today, and need some help

There are lots of things that can cause what you are getting in the way of results.

Is rifle bedded and barrel free floated?

What kind of rifle/sight do you have.

Bench rest technique may be bad.

Barrel may be problem. If it is new has it been defouled of copper? Was it stress relieved? H&R break downs are not per factory type I talked with.

What does muzzle crown look like.

How good is your scope? Loose internal elevation/windage will do this.

scopes mounts tight?

is action bedded properly? pillar bedding can help a bunch.

there are just so many things that can cause what you are afflicted with that just looking at groups is hard to address.

also try other propellants.

on subsonic loads try 2400, Red Dot etc.

has action been trued?

this is by no means a conclusive list and others will probably think of a couple dozen other possibilities. Sorry that I could not point to one thing but figuring this out is like trying to find a honest politician in DC with the crowd we got up there now

 

[MitchAlsup]

Re: tested loads today, and need some help

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: black_ump</div><div class="ubbcode-body">iam not sure which of the above i like most, </div></div>

I, personally, don't like any of them, although all are just fine accuracy for hunting.

<div class="ubbcode-block"><div class="ubbcode-header">Quote:</div><div class="ubbcode-body">and my question to you is of the above which would you deam the most accurate ?</div></div>

None of them.

<div class="ubbcode-block"><div class="ubbcode-header">Quote:</div><div class="ubbcode-body"> how would you test further for better results ?</div></div>

Start with ONE bullet, and one powder, and one primer, and one set (100) of cases all from the same batch (lot).
Perform a match prep on the brass
Then load them up in sets of 3s (5s prefered) with a step size of 0.5% from the midrnage in your load book for the bullet you have selected and the powder you have selected to the max load in the book.
Now go out and shoot these from groups.

The best group from this sweep will give you a starting point for a fine sweep (0.1 gr instead of 0.5%) around the best looking group, and a starting point for bullet seatind depth experiments. Then end result will be a load that will shoot well in your gun.

 

[TresMon]

Re: tested loads today, and need some help

They all have vertical. scrap'em.
http://www.snipershide.com/forum/ubbthre...442#Post1696442

your trying to shoot long range bullets @ short range. it rarely gives good results...
http://www.snipershide.com/forum/ubbthre...331#Post1695331

If you want to shoot @ 100 yards, shoot a match flat base bullet. the drag at the base increases stability.

 

[black_ump]

Re: tested loads today, and need some help

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Hummer</div><div class="ubbcode-body">There are lots of things that can cause what you are getting in the way of results.

Is rifle bedded and barrel free floated?

What kind of rifle/sight do you have.

Bench rest technique may be bad.

Barrel may be problem. If it is new has it been defouled of copper? Was it stress relieved? H&R break downs are not per factory type I talked with.

What does muzzle crown look like.

How good is your scope? Loose internal elevation/windage will do this.

scopes mounts tight?

is action bedded properly? pillar bedding can help a bunch.

there are just so many things that can cause what you are afflicted with that just looking at groups is hard to address.

also try other propellants.

on subsonic loads try 2400, Red Dot etc.

has action been trued?

this is by no means a conclusive list and others will probably think of a couple dozen other possibilities. Sorry that I could not point to one thing but figuring this out is like trying to find a honest politician in DC with the crowd we got up there now </div></div>


its an hk msg-90 a2 clone so

 

[black_ump]

Re: tested loads today, and need some help

give me an example of a match flat base bullet

 

[TresMon]

Re: tested loads today, and need some help


http://www.bergerbullets.com/Products/Target%20Bullets.html

30 cal bullets are at the bottom. The 150 grain hollow point flat base should do you fine.

 

[caustic]

Re: tested loads today, and need some help

good info thanks

 

[TresMon]

Re: tested loads today, and need some help

Happy to help

 

[black_ump]

Re: tested loads today, and need some help

on the subsonic data i think the 110 seems to be the better load mainly cause when i mesured it via mills and then came up and over those mills it held spot on so to speek

i think some of the loads above the subsonic ones have potential, i think alot of it has to do with me playing my part behind the rifle

 

[bozo699]

Re: tested loads today, and need some help

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: black_ump</div><div class="ubbcode-body">on the subsonic data i think the 110 seems to be the better load mainly cause when i mesured it via mills and then came up and over those mills it held spot on so to speek

i think some of the loads above the subsonic ones have potential, i think alot of it has to do with me playing my part behind the rifle </div></div>

Not to be insulting to you by any means,but I wouldn't except any of them even as hunting load.@ 50 yds my subsonic are in one ragged hole,same as 100yds..308s are usually very accurate even on inexpensive hunting rifles,inch or less.Is your barrel copper fouled? forarm screws loose or to tight? is your barrel-trigger-magazine-or action bound or touching your stock? front forarm screw to long touching lug on bolt when closed? bad crown,These things you can check for free and by looking @ your groups I would say you have @least one or two of these problems going on.Start by a visual and clean your barrel and try again.Best of luck to you.
Wayne.

 

[black_ump]

Re: tested loads today, and need some help

iam not zeroed for the subsonic load so i can i put on inside the next ?

i shoot a semi auto and every thing is floated forarm tight...

barel cleaned