Reloading: Breaking Down Factory Loads

griz: Have to admit that I have not found a really great load yet. But, I'll keep trying.... I am more suspicious of the rifle than myself.
I take rifles to the range to determine if they shoot or need to become a project. Again, I had a problem with a new Winchester Model 70 chambered to 300 win mag. One of my resource people suggested I bring it over. I did, we put 6 different loads together and went back to the range. That rifle reminder me of a few people I know, it did not like anything we loaded and I do not believe it even liked itself. The rifle went back to Winchester, we had words. They wanted me to shoot it more. I wanted them to reduce the size of the chamber or make me a set of Winchester dies that would fit there chamber.

And then one day they returned the rifle in a new box.

F. Guffey
 
All: The Boss is the muzzle brake version. I have worked with these for 20 years plus on 2 different rifles. Adjustment just doesn't improve groupings. General consensus from other sources is that either the powder has degraded and/or moisture has seeped in. Totally agree that the primers have to go as well. Plan to FL resize and some of cases could use a little trimming....yep, even though it's premium ammo. Onward with this little project! Thanks to all the comments, thoughts, opinions and suggestions! Time to go to work!
 
While this does not help, we have a family 270 Sako Finnbear.

It seemed it shot well when we were younger, trying to get a load for it hunting was pretty strange.

My brother bought like 4 or 5 different brands of 270 ammo and none of them was very good. 2.5 inches at 100 yds. Ugh.

I finally worked into some load with 4350 that shot 1 1/4 and that was good enough.

Not sure if its the gun, the longer throat of the Sakos but we had same problem with a Mauser 270.

You can get them to shoot decent, but never did come up with a real tack driver load on those famous made guns.

I know others have had some stellar 270s but my take and some reading is on the average they are decent hunting caliber (accuracy) but not a day in day out you can count on for real accurate target type shooting.
 
rc have you tried a 140 gn hornady interlock with imr7828 in that mauser. I have a fn mauser that loves that combo.
 
I have to admit, I've been more than a little disappointed by accuracy of my .270. And, you don't see many Match/Competition reloading dies being made for a 270... That says something itself. My Browing 30-06 and my FN 308 (with 16" barrel) are so far heads and tails above my 270 as far as accuracy. But, had an ol friend who had the same 270 long before mine and he could not say enough about it.... Soooo, I had to have one! Thanks for the Hornady suggestion. Just might include that as next step if my own hand loads with 140 gr. TBBC won't fly.
 
Skip02, I built a 270, I loaded 12 different loads of 10 rounds each using different case head stamps, powders and bullets. I went to the firing range and took most of the day trying to determine what the rifle liked. The groups moved but all the groups could be covered with a quarter. Some of the groups shared the same hole.

I delivered the rifle with 12 different loads of 10 rounds each with 12 different head stamps. My instructions to the new owner suggested he determine what the rifle liked. Time past, I had to ask, if the rifle liked one loading over the other I could cut down on the variety. The new owner is an incredible shot. He said he took one round out of the box and shot it. After the one shop he adjusted the scope then put the next 9 rounds thought the same hole.

He returned the fired cases in a bag. Did that drive me to the curb? Or put another way: did that lock me up? No; To get all the cases back together in groups of 10 I tumbled and then separated by head stamp. The ammo boxes I gave him were in another bag.

Had I taken a rifle to the range that was not accurate it is possible the rifle would not have liked one of the 12 loads. I am surrounded by accurate reloaders. I took a 300 Win Mag to the range, by the time I ran 120 rounds through it I gave up. I called a near-by reloader. He said we could find something that rifle liked. When we left the rang he decided that rifle did not like itself. It went back to Winchester. They suggested I shoot it more. And then; We had words.

F. Guffey
 
rc have you tried a 140 gn hornady interlock with imr7828 in that mauser. I have a fn mauser that loves that combo.

sako2:

Definitely not one I had heard of. The powders have tended to be 06 oriented but they also seem to cross over into 270 by application if not desired results.


Ergo 4350 seem to have a decent rep.

I have passed the suggestion onto my brother who owns the Mauser (3000), thank you.

One bad part is the Sako scope hates my eyes, nice Leopold and I can't get it to adjust. I have to get my brother(s) to shoot it for any load work.

The other brothers see through it fine, go figure.
 
sako2:

Kind of funny, my brother used up all his old powder for his old 7mm load, forget which one, but the current does not shoot anywhere near as well (one of those rare 7mm tack drivers with the old stuff)

He is going to get the 7828 for the 7mm so he can give it a try in the 270.

Will see about the Sako. 1 1/4 is good enough for hunting and its a bother to have to get someone else to shoot the gun when trying ammo.
 
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