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bdan68 Offline OP
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I recently got a Remington 700 in 338 Win Mag. So far I've tried RL15 and Ramshot Big Game. I have some RL16 and I'm wondering if it's worth trying, but I've seen no data for RL16 in the 338 Win Mag. I'm using 210 grain Nosler Partitions and my goal is good accuracy with only moderate recoil. I'm not trying for top velocities. Somewhere in the neighborhood of 2800 to 2850 fps. Would love to hear from anyone who has tried it, or if perhaps you have run it through Quickload.

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bdan68 Offline OP
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Nobody? I find lots of data for RL17 and RL19, and some for RL15. It sure seems like RL16 would work as well.

Anyone know how I could just figure out where to start, if I were to load up RL16 with 210 grain Partitions? I see for 150 grain bullets in the 300 Win. Mag. Alliant shows 74 grains of RL17 and 73 grains of RL16 as max loads. Then for the 338 Win Mag and 200 grain bullets they have data for RL17 and they list 71 grains as max. Would I be safe then to assume that 70 grains of RL16 would be max in the 338 with my 210 grain Partition bullets? And of course drop down by 10% and work up from there?

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Can't help you on the RL16 but IMR4350 works great in my 338 rem. Mag. with 210 part. I think if you had H4350. Imr4451 would be good ones to I have heard of good success with RL17.

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I always ran 71.0 gr's H4350 with the 210 Partition. Can't speak to RL16, but I've found in other cartridges RL17 tracks very closely with H4350 in terms of charge weight, but it generally gives higher velocity.

If the 2,800 range is what you're after, I'd look at 70.0, or a bit less, of H4350.


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Here is what QL shows for RL16, 24" barrel and 210 Partition.

Cartridge : .338 Win Mag.
Bullet : .338, 210, Nosler PART SP 16337
Useable Case Capaci: 77.827 grain H2O = 5.053 cm³
Cartridge O.A.L. L6: 3.340 inch = 84.84 mm
Barrel Length : 24.0 inch = 609.6 mm
Powder : Alliant Reloder-16

Predicted data by increasing and decreasing the given charge,
incremented in steps of 0.309% of nominal charge.
CAUTION: Figures exceed maximum and minimum recommended loads !

Step Fill. Charge Vel. Energy Pmax Pmuz Prop.Burnt B_Time
% % Grains fps ft.lbs psi psi % ms

-03.1 102 71.09 2889 3891 55602 10149 100.0 1.176 ! Near Maximum !
-02.8 102 71.32 2897 3914 56189 10163 100.0 1.171 ! Near Maximum !
-02.5 102 71.55 2906 3938 56781 10175 100.0 1.166 ! Near Maximum !
-02.2 103 71.77 2915 3961 57379 10188 100.0 1.160 ! Near Maximum !
-01.9 103 72.00 2923 3985 57982 10200 100.0 1.155 ! Near Maximum !
-01.5 103 72.23 2932 4008 58592 10212 100.0 1.149 ! Near Maximum !
-01.2 104 72.45 2940 4032 59208 10224 100.0 1.144 ! Near Maximum !
-00.9 104 72.68 2949 4055 59830 10235 100.0 1.139 ! Near Maximum !
-00.6 104 72.91 2958 4079 60459 10247 100.0 1.134 ! Near Maximum !
-00.3 105 73.13 2966 4102 61095 10259 100.0 1.129 ! Near Maximum !
+00.0 105 73.36 2975 4126 61737 10270 100.0 1.123 !DANGEROUS LOAD-DO NOT USE!
+00.3 105 73.59 2983 4150 62387 10282 100.0 1.118 !DANGEROUS LOAD-DO NOT USE!
+00.6 106 73.81 2992 4173 63043 10293 100.0 1.113 !DANGEROUS LOAD-DO NOT USE!
+00.9 106 74.04 3000 4197 63707 10305 100.0 1.108 !DANGEROUS LOAD-DO NOT USE!
+01.2 106 74.27 3009 4221 64377 10316 100.0 1.103 !DANGEROUS LOAD-DO NOT USE!
+01.5 107 74.49 3017 4245 65056 10327 100.0 1.098 !DANGEROUS LOAD-DO NOT USE!

Results caused by ± 10% powder lot-to-lot burning rate variation using nominal charge
Data for burning rate increased by 10% relative to nominal value:
+Ba 105 73.36 3084 4434 75170 9831 100.0 1.041 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 105 73.36 2807 3674 49051 10564 97.8 1.234


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bdan68 Offline OP
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My problem is I recently got rid of the last 1-1/2 pounds of H4350 that I had. I gave up on using it anymore since it's simply not available anywhere, and it's all I've ever used for 30/06 loads for 25 years. I'm also switching from H4831 in my 270 to RL26. No more Hodgdon powders for me.

I bought the RL16 as a replacement for the H4350. I think the RL15 will work fine in the 338 but I was curious if anyone had experience with RL16. I believe it's supposed to be more temperate insensitive than RL15 (and RL17.)

Alliant compares it to 4350:

"The Reloder 16 burn rate is slightly faster than that of Reloder 17, well within the 4350 burn speed band. This makes it ideal for traditional hunting cartridges such as 30-06 Spring. and 270 Win., as well as 6.5mm target loads and tactical applications where temperature stability is required."

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bdan68 Offline OP
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Beretzs- thanks much for the Quick Load data. So it looks like I'd be fine going up to 70 or 71 grains. Like I said, all I want is to get somewhere between 2800 and 2900 fps. I'll try both RL15 and RL16 and go with whichever one gives the best groups.

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I plan on giving it a shot myself. So far RL16 has been excellent in the 270 Win with 130's and the 30-06 with 180 Accubonds.

Seems really darned close to H4350 in my book.


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bdan68 Offline OP
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That's exactly what I planned on using it for- 130's in my 270 and 180's in my 30/06. I already got a great shooting load in the 270 with RL26 and 140 grain Bergers. The RL16 might work pretty well for that as well. If it'll work in the 338 I could get by with only one powder, as that's all I load for, two 30/06's, 1 270 Win, and the 338.

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I use 63 to 64 grains of R15 with 200 grain Hornady bullets for a practice load. Recoil is light accuracy is adequate. Probably will kill anything you are likely to run into here in N. America.

Jim

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So I finally got out to shoot the 338, and the RL16 did pretty well. I loaded 6 sets of 3, from 67.0 grains up to 69.5 grains. With the max load I got an average velocity of 2,780. That's with the chronograph at 15 feet, so muzzle velocity must be right at 2800 fps. However, that load gave me a bad group, whereas the previous two groups were just a hair over an inch, and that's good enough for an elk rifle in my mind. 68.5 grains gave me 2,749 and 69.0 grains was 2,769. Extreme spread on one was 26 and the other 27. The 69.5 grain charge gave me an extreme spread of 50. I'll be loading up some more, probably at 68.5 grains, with different seating depths and maybe a different primer to see if I can find the magic combination.

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Great, that is excellent. Seems like you are probably hovering around a good load. I would think that 210 around 2750-2800 should be excellent and probably a pretty easy shooting load since it just about mimics what a 338-06 does. Glad it worked for you, I am looking forward to giving it a try myself once I get a break from this day job laugh


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It's still got plenty of recoil, but not too bad. I was able to shoot 28 times from the bench without a problem, but I was wearing one of those PAST recoil pads and that really helped. Like I said, this Remington 700 is new to me, and it has no recoil pad, and it's relatively light. Heck it's lighter than my Weatherby Vanguard in 30/06, and that rifle has a Pachmayr recoil pad. So for this hunting season I'm fine with a little less velocity, but when I get around to it I'd like to put a laminated wood stock with a good recoil pad on the 338 to add a little weight and lessen the recoil a little. Then maybe I'll try to load it to its maximum potential but for now I just want a mild, accurate load. I've got a Leupold 3-9x40 with the Long Range Duplex reticle on it, and with a 100 yard zero, it gets me to 400 yards, and that's as far as I ever see myself shooting at an elk.

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Any opinions on primers? I'm using CCI 250's but also have Federal 215's to try. What about non-magnum primers? I have WLR's. Worth a try as well?

I probably will continue using the same CCI 250 primers while I test different seating lengths. After determining the length that groups best, I may try other primers to see if I can tighten up the groups (or the ES) any further.

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Originally Posted by beretzs
I plan on giving it a shot myself. So far RL16 has been excellent in the 270 Win with 130's and the 30-06 with 180 Accubonds.

Seems really darned close to H4350 in my book.

More info please. smile


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Originally Posted by elkhunternm
Originally Posted by beretzs
I plan on giving it a shot myself. So far RL16 has been excellent in the 270 Win with 130's and the 30-06 with 180 Accubonds.

Seems really darned close to H4350 in my book.

More info please. smile


Check out the data on Alliant's page for RL16, I am running their loads so far and I am not lagging behind their speeds by very much in my rifle. I will get some better numbers for you once I get it back out and shoot it some more, but I am pretty impressed with the stuff so far. I couldn't get H4350 so I decided to give 16 a try and have no regrets so far.

http://www.alliantpowder.com/downloads/RL16_Initial_Loads.pdf

Last edited by beretzs; 06/02/17.

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bdan68 Offline OP
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I've got my notes handy right now so thought I'd share the velocities I got. What surprised me was the small increase in velocity with each half grain increase in powder. But then, maybe that's normal with a larger capacity case such as the 338 Win Mag. I've been reloading for over 30 years but have only loaded for the 270 Winchester and the 30/06. So anyway, here's my chronograph readings, and actually I did 4 in each set, not 3 like I said before. This is the average of the 4 shots...

67.0 - 2679 ES: 23
67.5 - 2699 ES: 14
68.0 - 2720 ES: 26
68.5 - 2749 ES: 26
69.0 - 2769 ES: 27
69.5 - 2780 ES: 50


Primers were CCI 250
Brass was new Remington NOT resized
OAL was 3.245


I'm hoping next time using once fired brass and only neck sized with a Lee collet die, I might improve the extreme spread numbers a bit and hopefully the groups as well. I'm also going to experiment with different seating depths.

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Great data. Thanks for posting that. I might have to give it a shot in mine.


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bdan68 Offline OP
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Originally Posted by beretzs
Great data. Thanks for posting that. I might have to give it a shot in mine.


I'd be curious to see when you start seeing too much pressure. I might get brave eventually and try to go up to 72 grains. It's just like I said, recoil is beginning to get pretty brutal, even at my max of 69.5 grains.I'm wondering if you'd be able to get 2900 fps. Certainly, your Quickload data shows that you can, and possibly you could get close to 3,000.

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Originally Posted by beretzs
Originally Posted by elkhunternm
Originally Posted by beretzs
I plan on giving it a shot myself. So far RL16 has been excellent in the 270 Win with 130's and the 30-06 with 180 Accubonds.

Seems really darned close to H4350 in my book.

More info please. smile


Check out the data on Alliant's page for RL16, I am running their loads so far and I am not lagging behind their speeds by very much in my rifle. I will get some better numbers for you once I get it back out and shoot it some more, but I am pretty impressed with the stuff so far. I couldn't get H4350 so I decided to give 16 a try and have no regrets so far.

http://www.alliantpowder.com/downloads/RL16_Initial_Loads.pdf

Gotcha. wink


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