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RL-33 Load Data

 
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  #99  
Old 11-01-2012, 07:48 PM
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Re: RL-33 Load Data

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Originally Posted by Tikkamike View Post
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Originally Posted by bigry26 View Post
I would like it rmwinn26@hotmail.com thanks Ryan
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  #100  
Old 11-01-2012, 08:29 PM
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Re: RL-33 Load Data

That is not very impressive data for the 338. I hope that it can be pushed harder than that!
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  #101  
Old 11-02-2012, 06:52 AM
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Re: RL-33 Load Data

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Originally Posted by Korhil78 View Post
That is not very impressive data for the 338. I hope that it can be pushed harder than that!
They are at or above factory spec. of 2950 fps with a 250 in the lapua. They are also using a 24" barrel as alliant always does if I'm not mistaken so in your 26" -30" pipe you will probably do better. From what I've seen so far this stuff is right between rl25 and the 50 bmg type powders. I need to get my 225 grain bullets through a chrono from my 300 rum with rl33. They shoot well but I need to know how fast they fly.
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  #102  
Old 11-15-2012, 05:12 AM
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Re: RL-33 Load Data

Finally made it to the range yesterday with RL33 & the 6-284. I chambered a dummy round then put a cleaning rod down the barrel to measure the usable barrel length. I added 1/2 " to this measurement for a total of 26.5". I used Rem. 9 1/2 Magnum primers for all loads. 105 Berger Hybrids w/HBN were also used for all loads. The loads other than the RL33 were loads that I had previously worked with. This is my first fast twist (1:7.5) 6-284. This is NOT a test as to how fast I can push the Bergers. I was interested in how fast the very accurate loads were. I used an Oehler 35P chrono 15 feet in front of the muzzle & added 9 fps to arrive at the muzzle velocity. Previously I had started out the RL33 testing with 56.5 grs. & worked up to yesterdays selection.
51.0 grs. RL22 = Avg. 3158 fps
55.2 grs. WMR = Avg. 3369 fps
55.0 grs Retumbo = Avg. 3289 fps
59.5 grs RL33 = Avg. 3249 fps
60.5 grs. RL33 = Avg. 3343 fps
The accuracy was done @ 200 yards. These are only averages of 3 shots. The load of 60.5 grs. RL33 was the most accurate. These charges were safe in my rifle. As always start lower & work up in yours.
Semper Fi
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  #103  
Old 11-15-2012, 11:49 PM
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Re: RL-33 Load Data

103 grains behind the 300 grn SMK in my edge is running 2960 from a 30" barrel. The primer is still not completely flattened.
Has anyone else noticed that it smokes quite a bit
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  #104  
Old 11-16-2012, 07:42 AM
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Re: RL-33 Load Data

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Originally Posted by bassin93 View Post
Has anyone else noticed that it smokes quite a bit
Nope I haven't noticed a lot of smoke. I've been burning some in my 300 rum and 7stw.
It could just be the warp signature from getting 3K out of a 300 smk out of a rum case.
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  #105  
Old 11-29-2012, 07:49 PM
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Re: RL-33 Load Data

Just loaded up some RL 33 for my "cabin gun". 300 wby, Spencer 1-10 twist, 30" on a BAT action, all wrapped up in a Shehane MBR Tracker.

This is the tube that never made as a true comp grade bbl. It is also the tube that LOVES Retumbo....LOTS of retumbo. I am just trashing the Norma brass after 7 firings. Primer pockets are still good, but the I started noticing the web growing. Now the shells wont fit into the RCBS shelholder on my priming tool. They still fit in the RCBS holder on my press though. What was scarry about his load was that I did the development without a chronograph. Backed off when I started to get the "click" at the top of the bolt lift. A grain less had no lift problems, but did show some "cratoring" of the primers. Another grain less showed absolutly no PSI signs. NONE...untill the fifth firing when I noticed the web problem. I didn't realize where I was, PSI wise, till I read the numbers on the chrono.
The load....Berger 210 VLD-H...88 gr retumbo at.....3270 FPS!!!!

Switched to the 230 Berger....87 GR....3190 FPS!!!

Figured I was playing with fire, so I trashed the brass and am going to try RL-33. Will also retest with the Retumbo...start at the bottom again and work up.

We will see if the RL-33 can match the Retumbo in the WBY case. I loaded three each from 85 Gr to 91Gr. Will start the retumbo around 81G.
When my EDGE gets finished I will run H1000 and RL 33 side by side. I know that the standard powder for the Edge is H1000, but I also know the RL 25 is the go to powder for the 300 WBY (at least for 1000 BR anyway) and this tube just didn't like it.
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