Probably because the people writing manuals are actually using pressure testing equipment these days, rather than just making educated guesses as to pressure.
pushing 280 rem past max load
- Thread starter Kelly and Beth
- Start date
Probably because the people writing manuals are actually using pressure testing equipment these days, rather than just making educated guesses as to pressure.
280 loads
I have loaded for the 280 for over 40 years now, bought the second one sold in BC. I am on my 3rd. barrel in a 700 Rem. I have used 4831 and 4350 and loading data for the 270 on all bullet weights up to 175 grn. bullets, I can easily run 2/3 grns. more powder than any 270 load data and have used the same brass, neck sized only,for over 30 re-loads with no problems, accuracy usualy came with close to 270 max loads, I seat my bullets out as far as possible, just back of touching rifling in barrel. see your loading book on how to do this. I have not had a bad experience yet, and have pilled up a lot of moose, carriboo and bears with this rifle, using 150 and 175grn.bullets, 120grn. work just great on deer, I would not trade it for any other gun.
It all comes down to where you put that bullet that kills anything.
I have loaded for the 280 for over 40 years now, bought the second one sold in BC. I am on my 3rd. barrel in a 700 Rem. I have used 4831 and 4350 and loading data for the 270 on all bullet weights up to 175 grn. bullets, I can easily run 2/3 grns. more powder than any 270 load data and have used the same brass, neck sized only,for over 30 re-loads with no problems, accuracy usualy came with close to 270 max loads, I seat my bullets out as far as possible, just back of touching rifling in barrel. see your loading book on how to do this. I have not had a bad experience yet, and have pilled up a lot of moose, carriboo and bears with this rifle, using 150 and 175grn.bullets, 120grn. work just great on deer, I would not trade it for any other gun.
It all comes down to where you put that bullet that kills anything.
Gatehouse, when Hogdon entered the powder world after the war, they used pressure barrels for all their loadings. I imagine all the major powder companies did.
It was the lawsuits, or fear of being sued, that lowered the loadings, in factory ammo and the loading books.
It was the lawsuits, or fear of being sued, that lowered the loadings, in factory ammo and the loading books.
A good portion of the answer is in the fact a number of early 280 loads were on the light side and the loading manuals followed suit. My 280 load is 2 grains over max. Remingtons tend to shoot better when loaded to the nutz.
When I had a 338, the load was hot when outside temperature rose above 50 degrees F.
When I had a 338, the load was hot when outside temperature rose above 50 degrees F.
This can be a misleading statement.
Remember a 1:9 twist barrel will always send a bullet spinning 1 revolution for every 9" traveled. The faster you push it it has more RPMs but it still has the same 1:9 ratio.
Alot of times driving a bullet faster improves stability do to barrel harmonics.
just my .02 to keep this clear
DW
Combine "tuned to your rifle" quickload with OBT (Optimal Barrel Time) chart.
http://home.comcast.net/~davidawilson/LongRange/OBT_Process.pdf
http://home.comcast.net/~davidawilson/LongRange/LR_OBT_Load_Devlp.htm#_ftn1
I have not actually tested the OBT theory but I have run my accurate (worked up the old school way) loads through QL and found that they were almost DEAD ON to what the OBT listed for that barrel length should be.
- Location
- Vancouver Island BC
Every rifle is different,load data should start over with every new rifle even if in the same caliber.
What can be shot well out one rifle can easily be excessive in another....start low and work up.
What can be shot well out one rifle can easily be excessive in another....start low and work up.
http://www.shootingsoftware.com/pressure.htm
RSI Pressure Trace
If you do a lot of experimentation with different loads, it pays itself off pretty quick in time and components.
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