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icepick
Reply with quote  #1 
I'm currently shooting 105 Lapua's and using 29.9 gr of RE 15.
It shoots fantastic but I still wanna experiment. I just got my hands on a lb of RE 17 and want to try it.

Has anyone used this with any success?

I'm looking for suggested loads.
rcw3
Reply with quote  #2 
RL17= too slow a powder for a 6BR
sleepygator
Reply with quote  #3 
With all due respect to rcw3, he is wrong. RL17 is not a slow powder. Published comments that it is between 4350 and 4831 show ignorance of the homogeneous deterrent effect. RL17 is a medium rate powder with excellent progressivity, allowing higher velocities for a given peak pressure.

Please take a look at my previous post. Since then, the weather has cooled and I have tried loads up to 33.4 for 3038 fps, 8.8 ES and 3.9 SD. I am seeing groups around .75 to 1.25 at 300 yards with Sierra 107s.

I no longer shoot anything but RL17 in 6BR.
rcw3
Reply with quote  #4 
I guess there's always and exception to the rule, but in the two 6BR's I tried it in, it was not a good match up with the 6BR case capacity.
tiny68
Reply with quote  #5 
I played with RE-17 with the 95BIBs in my 6BR. Velocity was superior to RE-15 and Varget by over 50 fps. Didn't group quite as good as the RE-15. Pulled that barrel and haven't been back to it. But, my data indicates that RE-17 may have some promise with the 6BR capacity. Maybe it shines even more in a 6BRX or other larger cases, but I will take what I can get.

Tiny
sleepygator
Reply with quote  #6 
I understand that experiences vary but all indicators are that RL17 is a nearly ideal match to the 6BR. At ~59ksi, loading density is 99%+. Velocity is over 3000 fps from my 30" barrel. ES and SD are in single digits. Accuracy runs between .25-.4 moa at 300 yards. I don't know what more could be asked. The attached image is my best group to date, fired 4 September. This was fired at 0815 and there was not a bit of wind, unusual in San Diego.

QuickLOAD shows maximum in every category; loading density, velocity and pressure. Propellant burnt is 100% at 30". This correlates very well with my experience and chrono data. Additionally, the powder is burning very cleanly.

The caveat is that I have only seen this performance level with Wolf KVB-5.56M primers. I tried CCI BR4 and Fed 205M but neither performed as well as the Wolf. Velocities were close but ES & SD were more than double the Wolf numbers.

If you will, please describe the components and load used during your testing.

Moderator
Reply with quote  #7 
Sleepygator, in the other post, indicated he has 39.0 grains of case capacity (for his 6BR). Most 6BR shooters are probably closer to 38.0. This could affect SG's ability to get enough RL17 powder in the case to achieve good velocities.
icepick
Reply with quote  #8 
Sleepygator,,,, I see you mentioned 300 yds, was that target shot at 300?
Also what bullet weight are you getting that speed with and what powder weight?

I found with my last BR that cramming in as much varget I could fit didn't help it make things worst and started to show signs of pressure, I backed off to a slower load around High 2800's and the groups got alot smaller and more predictable.

Thanks
Mike
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