Flyer elimination

[300WSM]

Lets hear all about it. I know you all have nine million opinions on this...I would love to see if there is any stone I haven't turned over. I doubt it but sometimes even the most experienced forgets or overlooks.
I've been trying to get this rifle to tighten up for this fellow as he has gotten frustrated. Now I'm getting frustrated :lol:
I will give the platform and what is happening.

model 70
25wssm

Three shot group there will always be one that just ruins the group.
Things that I've changed....primer...large rifle and use of magnum
seating depth. The group has gotten better the longer the OAL is but it can't get any longer and still fit into magazine.

One thing I'm curious on some of the thoughts you might have on this, the rifle shooting better with higher pressure. The longer the OAL ..or shorter distance to the rifling in the chamber the more pressure there is. That distance from bullet to rifling we decrease doesn't just help the bullet into the rifling. It also raises pressure. How much it raises is impossible to really measure. So my next step is going venture into the extra hot load territory. I've done it before with a picky platform and it worked. But those are so very few exceptions and I would like to add anyone wanting to do that must work up ever so slightly.

Last thing is the scope. I doubt very much it is the scope but stranger things have happened.

I welcome your thoughts.

 

[Greg Nolan]

The model 70 I bought new about 3 years ago in 223 WSSM wouldn't shoot anything near consistant 3 shot groups either. I tried most things involving loads and lengths to no avail. If longer is better but limited by magazine length you might try a blunter tipped bullet and see if it magically shows improvement. I ended up sending mine back to Winchester for a cure. They sent me a new rifle with no explaination and it shot accurate groups. I've heard several stories about the winchester WSSM barrel problems and sure enough it was true in my case.
Good Luck

 

[joelkdouglas]

What size groups are you talking about?

Have you thought about:

Placed bullets 0.020 inches off lands? My OAL experimenting begins and ends there.

How is the rifle bedded?

Factory barrel? Have you tried the Tubb fire lapping bullets? Are you willing to spend more for an aftermarket barrel?

What bullets have you used? Partitions don't group well for me normally, and your match bullet choice in 25 cal is only the Sierra Match King. Have you tried those? Accubonds I can usually get to shoot well without much effort.

Good luck!

 

[joelkdouglas]

Just re-read your post. If you can't get to 0.02 off the lands you might consider reducing the charge, if you haven't tried that.

What load are you trying?

Oh, and how long is the barrel?

 

[theseeker]

powder seletion eliminated mine... but other factors are accounted for, usally the shooter.

 

[Oldtrader3]

It is a WSSM! That is why it throws flyers. Now mind you, I have never owned a WSSM but they are being avoided like cancer by the shooting public. I have read, heard first hand and otherwise learned vicariously that many of them will not shoot dispite all lifesavings efforts given to bedding, load development and other mechanical measures. That may be the answer.

 

[FOTIS]

I had the 243 and 223 Wssm. The 243 was a joy. The 223 was the devil's spawn.

 

[wildgene]

...I haven't had much problem w/ my .25 WSSM, loaded w/ 75, 87/90, 115/120gr. bullets, most loads @ near max. loads of RL-17, COAL 2.285. Only bullets I had consistently unconsistent fliers w/ were the 110gr. AB's, I used up 50 & didn't get anymore...

 

[yellow dog]

was this rifle purchased from walmart during winchesters bankrupcy?


had the same problem with mine, lost alot of hair on that one.

 

[RiverRider]

My Kimber 84M Classic in .243 acted the same way. It went down the road.

 

[300WSM]

powder seletion eliminated mine... but other factors are accounted for, usally the shooter.

I've tried
Imr 4350 and 4831
Win 760
reloader 17
win supreme 780
hodgdon superformance

 

[300WSM]

I had the 243 and 223 Wssm. The 243 was a joy. The 223 was the devil's spawn.

I have worked up loads for other 25 WSSM's and eventually got them to shoot sub 1"

Not this one. Two will be under one inch but that third will always ruin the group. It's not always in that order as well. Sometimes the second shot or even the first shot will wing.....

shooting this in rapid succession or waiting thirty seconds or more between shots makes no difference with this rifle

 

[300WSM]

was this rifle purchased from walmart during winchesters bankrupcy?


had the same problem with mine, lost alot of hair on that one.

No. This rifle never seen a Walmart. It is an ultimate shadow rifle. Pre-64 action. Hinged floor plate. Wal mart guns were the CRPF guns with blind magazine. I hate walmart as much as the next person and always look for a reason to give them a black eye but its impossible this time.

 

[Dr. Vette]

Things that I've changed....primer...large rifle and use of magnum
seating depth. The group has gotten better the longer the OAL is but it can't get any longer and still fit into magazine.

I welcome your thoughts.

Try loading them longer one at a time, ignoring the magazine length. If this gets rid of your problem you may need to decide what means more - tight groups or using the magazine.

 

[JD338]

Two shots in and one out, do this.....

Seat your bullets deeper. Turn the seater on your die 1/4 turn in which is approximately .005".
Continue doing this and you should be able to walk it into the group.

JD338

 

[Silentstalker]

JD,

I am going to try your suggestion on seating depth. To help me understand what is happening, why does seating deeper bring in the flier? Just a small tweak in pressure?

 

[DrMike]

JD,

I am going to try your suggestion on seating depth. To help me understand what is happening, why does seating deeper bring in the flier? Just a small tweak in pressure?

Barrel harmonics--altering the seating depth permits finding the appropriate node to improve accuracy.

 

[Silentstalker]

Thanks!

 

[FOTIS]

Primer change sometimes helps.