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I've been using AR-Comp Powder, but can't find it anymore.
What powder is most comparable to Alliant AR-Comp?
What powder is most comparable to Alliant AR-Comp?
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I've seen AR-comp burn rate on different places on the chart. Last one had it list between XBR8208 (which I hear is twitchy) and Ramshot Tac.
I like AR-Comp also. I ran quickload for 120gr HPBT high to low velo. ( I like 748)
These are all within 20 fps.
IMR 3031
Hodgdon CFE223 *C
Ramshot Big Game
Winchester 748
Hodgdon BL-C2
IMR 4895
Accurate 2495
Alliant AR-Comp *C *T
Norma 203B *C
Accurate 2520
Shooters World Match Rifle
Alliant Reloder-15 *CLast edited by richj; 09-06-2021, 02:35 AM. -
Norma 202. I'd wager that AR-Comp is a modernization based off of it. But unfortunately, it's probably been 6 months since a boat with Norma powder has hit our shores. Unfortunately, my answer isn't a constructive one
Let's go Brandon!Comment
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Look at the bulk density as well as burn rate. Find the one with the closes burn rate and bulk density.Originally posted by Restomod View Post
I caution you or anyone else against using burn rate alone as a means of finding a similar powder with the Grendel. Not a good idea.
LR55Comment
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If you can't find AR comp the closest in terms of speed available that I have found/used, although not as temp-insensitive, are CFE223 and Lever, at least for the 120 class weights cup/core bullets.
Their load grains do differ from ARC, so for either powder you need to do your own workups.
Stay safe.[I]"Down the floor, out the door, Go Brandon Go!!!!!"[/I]Comment
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Has anyone seen any info that lists bulk density as well as burn rate and references Alliant AR-Comp?Originally posted by LR1955 View Post
I've found lots of bulk density and burn rate charts, but none that show AR-Comp.
I've spent several hours combing through various bulk density/burn rate charts on the internet, but can't find any info about AR-Comp powder.
If anyone knows of any links or info, please post it.
ThanksLast edited by Restomod; 09-06-2021, 06:49 PM.Comment
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Quickload data.
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AR-Comp was just in stock at PV a couple days ago. You really need to check things hourly these days.
I would suggest grabbing up what you can. My choices would be PPV, TAC or CFE. These are probably the easiest to obtain.Comment
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Thanks richj
At least now I know the bulk density of AR-Comp is 0.89 g/cc.
The only comparison chart I have found is from Lee, but it is in VMD not g/cc.
According to it & the burn rate charts, the powders that are closest to AR Comp in Burn Rate AND VMD are:
Accurate 4064
Accurate 2495
N 140
IMR 3031
Anyone know if these are temp stable or have any other reloading issues?
If bulk density is a concern & I'm trying to stay at 0.89 g/cc, how much deviation is considered to be acceptable?
Any thoughts or other input would be appreciated about the g/cc for the following:
Hodgdon CFE223 *C
Ramshot Big Game
Winchester 748
Hodgdon BL-C2
IMR 4895
Alliant AR-Comp *C *T
Norma 203B *C
Accurate 2520
Shooters World Match Rifle
Alliant Reloder-15 *CLast edited by Restomod; 09-06-2021, 09:43 PM.Comment
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RT:Originally posted by Restomod View PostThanks richj
At least now I know the bulk density of AR-Comp is 0.89 g/cc.
The only comparison chart I have found is from Lee, but it is in VMD not g/cc.
According to it & the burn rate charts, the powders that are closest to AR Comp in Burn Rate AND VMD are:
Accurate 4064
Accurate 2495
N 140
IMR 3031
Anyone know if these are temp stable or have any other reloading issues?
If bulk density is a concern & I'm trying to stay at 0.89 g/cc, how much deviation is considered to be acceptable?
Any thoughts or other input would be appreciated about the g/cc for the following:
Hodgdon CFE223 *C
Ramshot Big Game
Winchester 748
Hodgdon BL-C2
IMR 4895
Alliant AR-Comp *C *T
Norma 203B *C
Accurate 2520
Shooters World Match Rifle
Alliant Reloder-15 *C
Given the listing of powders here, I would go with 2520, TAC, and BLC2. You won't go wrong with 2520 for the Grendel. I have gotten the highest velocities from the widest range of bullets with 2520. Back in the day, we used TAC quite a bit and it was probably the most popular powder for the Grendel for a long time. Ball powders tend to be the ones best suited for the Grendel because you can get enough of them into the case to get some results. Extruded powders have less bulk density so you can't get enough of most of them into a Grendel case to give anything but very mediocre velocities.
Not really sure what your criteria are but these days you may not have much of a choice with the powder due to availability.
If you can get 2520, TAC, or BLC-2 you ought to go for which one is available. Easy to dispense and covers a wide bullet weight range. 2520 will give you the highest velocities but the differences won't be gigantic.
LR-55Comment
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I can help with C, it is indicating it is a compressed load. Not sure about TComment
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H4895 is a direct substitute. Effectively grain for grain and velocities match... refer to Hodgdon Load data. However, AR Comp and H4895 are different powders, which is plainly evident when looking at powders side by side.... different cornel size, shape and color.
This is not the situation like H110 and W296 where it is the exact same powder, but just marketed under 2 different names.Comment
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C* is copper fouling deterrent and
T* is temp insensitivityComment
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Currently (9/9 @ 3:27PM) Powder Valley has AR-Comp in stock.Comment
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