DoneNOut
Well-Known Member
I can seat the 200.20X in this CBI to an OAL of 3.010. CBTO 2.222
This was Interesting: RL-17 308 WIN
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Prieto9000
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I use exclusively 17 in both my 6.5 creeds. Awesome performance and my barrels last as long as most creeds do. I use it for both my hunting and competition loads.
Been using RL-17 ever since Bob Jensen and German Salazar reviewed it on Accurate Shooter.
https://www.accurateshooter.com/technical-articles/reloading/alliant-reloder-17/
I have a long throated 338 RCM that has been fed a straight diet of this powder for just under 500 rounds. About the same for a SA 284 with same powder. I am not seeing excessive firecracking in the throat with either rifle when using my hawkeye borescope.
The barrel heating index that quick load produced says for equal pressures RL-17 has a heat index of 3990 which is similar to many powders like RL-22, BLC-2 or Tac. I was surprised to see Varget's value is 4050.
I would not worry about the barrel and go ahead and use RL-17.
https://www.accurateshooter.com/technical-articles/reloading/alliant-reloder-17/
I have a long throated 338 RCM that has been fed a straight diet of this powder for just under 500 rounds. About the same for a SA 284 with same powder. I am not seeing excessive firecracking in the throat with either rifle when using my hawkeye borescope.
The barrel heating index that quick load produced says for equal pressures RL-17 has a heat index of 3990 which is similar to many powders like RL-22, BLC-2 or Tac. I was surprised to see Varget's value is 4050.
I would not worry about the barrel and go ahead and use RL-17.
Barrels are considered "consumables". I have a Hawkeye and a Teslong, they do not lie. There are degrees of fire cracking, and it is easy to tell which powders start the fire cracking quicker when you clean down to bare metal. Some powders will "wash" the lands out vs fire cracking. Some will "cook" the powder fouling so hard on the bore that they are somewhat difficult to get out. Choose your poison.
OP, I suggest that you go over to accurateshooter.com where a flock of national champions hangs out along with F class gunsmiths, and you will get some first-hand experience with guys that are currently shooting the 200x in competition. Remember that barrels are consumables, and how fast you want to consume is up to you. Measure your leade growth every 100 rounds.
OP, I suggest that you go over to accurateshooter.com where a flock of national champions hangs out along with F class gunsmiths, and you will get some first-hand experience with guys that are currently shooting the 200x in competition. Remember that barrels are consumables, and how fast you want to consume is up to you. Measure your leade growth every 100 rounds.
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DoneNOut
Well-Known Member
You're right. At least I'll have a full test of RL17 with 1000 200.20X and 8lbs of RL17!
Top three powders in FTR with the 200 class bullets are Varget N150 N150 and someitmes AR Comp, although none of the top tier dudes are using it. Top three bullets are 200Hybrid 200 20X and 185Juggernaut nothing else is really competitive.
If you can manage temp swings throughout the day you might be able to make RL17 work. It's all about holding vertical from the first string to the last. Muzzle velocity migration through the day is a deal.
DoneNOut
Well-Known Member
Did you mean to list another N powder or really stressing the N150?
Creedmoor shooter
Well-Known Member
I can attest rl-17 is hard on barrels. I toasted a 6.5 creed in 1800 rounds running 140s at 2885 using rl-17.
DoneNOut
Well-Known Member
I'll see how 308 do!
Did you mean to list another N powder or really stressing the N150?
My bad ......N140.
DoneNOut
Well-Known Member
Thats been a pooch for me so far. I got N540 to see if that will get some more velocity
