Modern Sporting Rifle Evolution
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Boundless

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Reply with quote  #1 
Hi all! I wanted to ask about some fire form loads. Currently I am using CFE BLK for powder to push a 115g speer gold dot. After looking at the pet loads sheet and master sheet I was planning on starting at 20g (OAL 2.15) and work up from there in 1% intervals after initial firing. Sound like a good place to start? Also, is this considered a compressed load?

Thanks to all!
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BIGGDAWG

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Reply with quote  #2 
 i personally never have used that powder with the wolverine so i can't give actual data  when i work up i step up at .3 grains typically  you might want to start a little lower though i show max load with aa1680 with that bullet around 20.7 grains and cfeblk is faster so i would start at about 17 grains and work up to be safe.
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Gusmeister

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Reply with quote  #3 
I have to go with Big D on this.  Last year I spent a lot of time developing loads for the 115gr Gold Dot.  For a while it felt like if there was a wrong way, I could find it.  If you want to settle for around 2300 fps in a 16" barrel, 1680 and Shooters World Blackout will treat you very well.  But I was trying to exceed 2400 fps and never got there without going way over pressure.  The SWBO was certainly better than the 1680 (both are good for 90 gr bullets and SWBO is perfect for 90gr bullets) but neither were up to the task.  I settled on AA2200 as it gave normal pressures, accuracy and 2400 fps.  It is surely a compressed load. 

In retrospect I think the SWBO powder would do about as well for velocity but have not gone back and retested.  I have some unproven theories about why the pressure was spiking on me but it's fair to say that a Gold Dot bullet is not jacketed (it is plated) and does not always behave like a jacketed bullet.  That is what drove me to a slower powder.

Yet I was planning on trying the 115gr Gold Dot bullet with CFE BLK later this year.  I thought it was a bit slower (never used it) than 1680 but the powder chart had it next to 1680.  But it's worth a try.  And like Big D says, start real low and work up in .3gr increments.  While the cases and primers did not always tell me the pressure was too high, when the primer pockets start opening up after a load or 2, pressure is too high.  you can get an inexpensive tool that will help out a lot. 

Please let us know how it works out for you.  But on the other hand, you basically cannot go wrong with a 90gr bullet IME.
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Boundless

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Reply with quote  #4 
Thank you both for your replies!

User macintosh had posted about his 115 gold dot loads. He settled on 22.3g of powder and OAL of 2.15 with an 18" 5R barrel (which is my setup exactly) so I figured backing off 10% from there and working up would be a good safe zone but I'll take your considerations and back off a couple grains! Ive got no issues playing it safe!
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Cabob

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Reply with quote  #5 
CFE BLK is actually way slower than 1680 in the Wolverine!

I tried CFE BLK in my 18" 3 groove barrel with 100 gr. Accubonds when I first started messing with the Wolverine. I tested it, along with 1680 and SWB. In the Wolvy, 1680 was quite a bit faster than CFE BLK. I don't have my notes in front of me, but 1680 hit max pressures with LC brass and 2.21 ish overall length at around 22.8 gr., whereas both CFE BLK and SWB were both above 24.0 gr. with CFE BLK actually being just a touch slower than SWB. I settled on 24.0 gr. of SWB and 2720 fps at an oal of 2.182 in that rifle. It gave the best speed and accuracy. I feel CFE BLK may work better with heavier pills.

I've also tested all three powders in a 7.62x39 bolt gun with 123 gr. Varmageddons.  It proved exactly the same. I don't recall the max powder charge with 1680 but I hit pressure way sooner with it than with CFE BLK or SWB. I actually went up to 29.5 gr. (Hodgdon book load) of CFE BLK and 29.0 gr. of SWB (Over max according to Lovex). I settled on 27.6 gr. of  SWB for that combination in that rifle. It's a tack driver and accounted for a doe deer and doe antelope this past fall with a new hunter pulling the trigger.
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Gusmeister

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Reply with quote  #6 
Thank you Cabob.  Burn rate charts vary quite a bit in actual application.  Now you have given me fresh hope to try the CFE with the 115gr Speer Gold Dots.
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