Same data for Nosler Part & BTï¿½s

25 July 2001, 22:37

<.280 Sweden>

Hi!

I have worked out some data for Nosler BTï¿½s 150grs with Norma 204 and wonder if I can use the same data for Partition 150grs?

Another Q: Is Norma MRP to slow for .280Rem in 22"bbl?

One of very few swedish .280Rem fan.

Some personally thinking "If there not was so many 6.5x55 rifle in Sweden before the huntinglaws was writen should that caliber be unlegal for Class 1, big game (ex,. moose and bear)hunting i Sweden.
Some goverment laws stinks!

Jonas, Sweden

25 July 2001, 23:48

John Frazer

quote:
Originally posted by Jonas:
Hi!
I have worked out some data for Nosler BTï¿½s 150grs with Norma 204 and wonder if I can use the same data for Partition 150grs?

Not necessarily though it will probably be close. The Vihtavuori manual is the only one I have that shows data for the same powder and different conventional jacketed bullets separately, but the 2-3 grain differences in max loads indicate that there can be some differences.

In my .270, I found the other day that switching to a different lot of 150 Hornady SPs was equivalent to a 1 gr. reduction in the charge. So, whenever you change anything, got to work up.

John

26 July 2001, 03:21

<ssleefl>

Close enough for hunting, and that's what the partitions are for. You should be right in the ballpark. Remember, testing is the fun part

31 July 2001, 08:19

<eldeguello>

I have done the same thing you are talking about using Nosler Partitions, Nosler Ball. Tips, and even Sierra PSPBT's with the same data in both .30 and 7mm cartridges. Most of the time, points of impact and velocities were much the same, never any signs of pressure, either.

No, RE 22 is not too slow for your 280 - I use it in the 7X57mm Mauser with 175 grain bullets, but it is approaching being too slow for the 7X57. My 7X57 RP cases will only hold 54 grains of RE22, to the case mouth!!

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Larry

31 July 2001, 08:22

<eldeguello>

OOPs!! Sorry, Jonas. You asked about MRP, not RE22!! Well, MRP is not too slow, either. I have used it successfully in the 7X57MM case, and got better than factory velocities with safe loads!!

31 July 2001, 16:16

ready_on_the_right

Jonas- I've worked up loads for both bullets(130gr) in my .270 and both made it to 55grs of IMR-4350 and shot to the same point of impact at 100yds.

They were worked up incrementally.

Mike

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