.300 Win 175 LRX at 3200 anyone?

preacher

Handloader
Aug 19, 2012
2,053
9
I'm looking for a load ( I always work up to it, no fear) with a temp stable powder that gets and honest 3200fps with the 175 LRX? I normally hunt around freezing, maybe a bit cooler. I used R23 but only got 3100 or so. I have an assortment of Magnum. R17, R16, H4831, H4350, IMR 7828, and so forth. I have some rounds to try with IMR 7828, anyone like this powder for that? My plan is to get all the "oomph" I can from this combo. But if the IMR powders are stable enough (in the magnum) I'll set up for one of them. I have a new Leupold 2.5x8 with the dial em in turret I will set up for this one load. (I decided to shoot all the oddball weights on my shelf/styles with my 30-06.
 

diverdown

Handloader
Apr 29, 2015
443
38
I'm running 75 Grains of RL26 with a 180 grain Federal. Primer is a Federal 215M and the Rifle is a Christensen Arms with a 26 inch barrel. Velocity is 3212 and accuracy is great. The only difference with my rifle is that it's been throated to handle the 180 grain Federal at 3.600. The may be a breaker for you.
 

preacher

Handloader
Aug 19, 2012
2,053
9
I ran into trouble with R26 (in a .280 awhile back) when it got over 85 deg, which it can do out here easy. Last cow elk i took I had to go on Labor Day Weekend ( couple years ago) and it was 91 deg during the day. it finally cooled off to a 86 that evening, but I got my cow. That was with the R23 73gr/175 LRX load. But thanks again pard. :) P.S. Hot, sweltering weather and elk Hunting is an oxymoronic experience for me! Arrgh. lol
 
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jimbires

Handloader
Aug 16, 2011
2,413
255
if I was trying to do this , N570 would be where I started .

Cartridge : .300 Win. Mag.(W)
Bullet : .308, 175, Barnes 'LRX'BT 30318
Useable Case Capaci: 79.821 grain H2O = 5.183 cm³
Cartridge O.A.L. L6: 3.340 inch = 84.84 mm
Barrel Length : 26.0 inch = 660.4 mm

Predicted Data for Indicated Charges of the Following Powders.
Matching Maximum Pressure: 62400 psi, or 430 MPa
or a maximum loading ratio or filling of 115 %
These calculations refer to your specified settings in QuickLOAD 'Cartridge Dimensions' window.
C A U T I O N : any load listed can result in a powder charge that falls below minimum suggested
loads or exceeds maximum suggested loads as presented in current handloading manuals. Understand
that all of the listed powders can be unsuitable for the given combination of cartridge, bullet
and gun. Actual load order can vary, depending upon lot-to-lot powder and component variations.
USE ONLY FOR COMPARISON !

Powder type Filling/Loading Ratio Charge Charge Vel. Prop.Burnt P max P muzz B_Time
% Grains Gramm fps % psi psi ms
--------------------------------- -----------------------------------------------------------------
ReloadSwiss RS 76 *C 109.0 86.3 5.60 3290 100.0 62400 12618 1.171 !DANGEROUS LOAD-DO NOT USE!
Vihtavuori N570 *C 112.7 87.4 5.67 3273 96.0 62400 13480 1.178 !DANGEROUS LOAD-DO NOT USE!
ReloadSwiss RS 80 *C 111.8 89.2 5.78 3257 98.4 62400 12994 1.183 !DANGEROUS LOAD-DO NOT USE!
Alliant Reloder-33 *C 114.3 91.2 5.91 3255 96.3 62400 13293 1.179 !DANGEROUS LOAD-DO NOT USE!
Alliant Reloder-26 *C 100.6 79.6 5.16 3237 100.0 62400 11744 1.194 !DANGEROUS LOAD-DO NOT USE!
ADI AR 2218 115.0 90.1 5.84 3222 95.2 61202 13533 1.179 ! Near Maximum !
Bofors RP30 112.0 82.4 5.34 3220 99.4 62400 12278 1.192 !DANGEROUS LOAD-DO NOT USE!
Norma MRP 2 *C 112.0 82.4 5.34 3220 99.4 62400 12278 1.192 !DANGEROUS LOAD-DO NOT USE!
Alliant Reloder-25 *C 109.6 80.2 5.20 3215 100.0 62400 11429 1.181 !DANGEROUS LOAD-DO NOT USE!
Norma MRP *C 101.5 77.9 5.05 3214 100.0 62400 11908 1.191 !DANGEROUS LOAD-DO NOT USE!
Vihtavuori N560 *C 103.3 77.6 5.03 3210 98.7 62400 12262 1.186 !DANGEROUS LOAD-DO NOT USE!
PB Clermont PCL 517 106.1 83.3 5.40 3209 99.3 62400 12022 1.178 !DANGEROUS LOAD-DO NOT USE!
SNPE Vectan SP 12 105.9 83.2 5.39 3208 99.4 62400 12000 1.178 !DANGEROUS LOAD-DO NOT USE!
ADI AR 2225 115.0 85.1 5.51 3201 100.0 59420 12030 1.200 ! Near Maximum !
Hodgdon Retumbo 115.0 85.1 5.51 3201 100.0 59420 12030 1.200 ! Near Maximum !
Accurate MAGPRO 103.5 81.0 5.25 3199 97.6 62400 12336 1.193 !DANGEROUS LOAD-DO NOT USE!
IMR 7828 107.8 77.1 4.99 3196 99.0 62400 11856 1.176 !DANGEROUS LOAD-DO NOT USE!
IMR 7828 SSC 101.9 77.1 4.99 3196 99.0 62400 11856 1.176 !DANGEROUS LOAD-DO NOT USE!
Vihtavuori N565 *C 108.1 81.7 5.29 3188 98.8 62400 12119 1.205 !DANGEROUS LOAD-DO NOT USE!
 

preacher

Handloader
Aug 19, 2012
2,053
9
N570 may as well be Green Moon Cheese right now, ha. I do have a bit of N560 my current loads aren't accurate enough. Thank you for taking the time to post the info Pard!
 

jimbires

Handloader
Aug 16, 2011
2,413
255
N570 may as well be Green Moon Cheese right now, ha. I do have a bit of N560 my current loads aren't accurate enough. Thank you for taking the time to post the info Pard!



it's scarce for sure , I did get an 8 pounder a few months ago .

by looking at the numbers N570 is your best choice of powder to meet your requirements . it maxes out at 3273 FPS so you won't have to push the pressure sky high . it has a reputation of being temp stable . I've messed with it a little , and I like what I see . I have not messed with it enough to see how temp stable it is .

RL33 is not temp stable .
RL26 didn't work for you .
RL25 is not temp stable .
N560 didn't work for you .
after N560 the powders are so close to the 3200 FPS that you might not reach your goal , without upping the pressures .
 

xphunter

Beginner
Sep 15, 2005
201
277
I'm looking for a load ( I always work up to it, no fear) with a temp stable powder that gets and honest 3200fps with the 175 LRX? I normally hunt around freezing, maybe a bit cooler. I used R23 but only got 3100 or so. I have an assortment of Magnum. R17, R16, H4831, H4350, IMR 7828, and so forth. I have some rounds to try with IMR 7828, anyone like this powder for that? My plan is to get all the "oomph" I can from this combo. But if the IMR powders are stable enough (in the magnum) I'll set up for one of them. I have a new Leupold 2.5x8 with the dial em in turret I will set up for this one load. (I decided to shoot all the oddball weights on my shelf/styles with my 30-06.
I know we want what we want, because we want it, but is there a reason why you are looking for that specific MV goal?
Your impact velocity is going to be plenty high for that bullet to work great at almost any distance that most people would hunt at.
My Curious George is on😊
 

preacher

Handloader
Aug 19, 2012
2,053
9
I looked a long time this AM for some N570...no joy. So...I'm just going to work up with the Ramshot Magnum and whatever gives me the best accuracy "around" 3100 I'll be happy with! As I said, I will dial it in anyhow with this scope. No real need for 3200 (heck, I would have got another 300 RUM if I wanted that for sure) just wanted it, ha. I agree, plenty of energy for anything.
 

RL338

Handloader
Mar 23, 2017
523
265
To bad RL-26 won’t cut it for you , that would be an ideal case fill. N570 is good powder just need a lot to stuff in case to hit your targeted velocity.
 

xphunter

Beginner
Sep 15, 2005
201
277
I know this is weird, but this is just the way my mind works. When I see the subject matter here I just want to be reading about a post hearing about a 300WM with 175 grain bullet hitting a target at 3200 yards!
 

jimbires

Handloader
Aug 16, 2011
2,413
255
I looked a long time this AM for some N570...no joy. So...I'm just going to work up with the Ramshot Magnum and whatever gives me the best accuracy "around" 3100 I'll be happy with! As I said, I will dial it in anyhow with this scope. No real need for 3200 (heck, I would have got another 300 RUM if I wanted that for sure) just wanted it, ha. I agree, plenty of energy for anything.
I keep watching for N570 . if I find it online , I'll try to remember to tell you .
 

preacher

Handloader
Aug 19, 2012
2,053
9
Heck, I used 76gr R22 / Barnes 180 XBT for several years, but it got wonky too in hot weather. I like R23, but accuracy hung up around 3080fps, which was fine. I now have some Magnum and for grins, loaded some with IMR 7828. See what I get.
 

DrMike

Ballistician
Nov 8, 2006
34,810
959
The prices on the Vihtavuori powder has sure gone up! Still, these are excellent propellants, and VN570 is excellent in overbore cartridges. I've used a ton of it during the past years.
 

jimbires

Handloader
Aug 16, 2011
2,413
255
Vihtavuori powders are hard for me to get locally , so I shied away from them . now that powders are so hard to find I've bought the last few jugs online , including N570 . I've only messed with it a little , but I do like what I see . I'll have to check with the local gunshops to see if they can order it in for me . I don't think any of them sell it .

must have been a large shipment of N570 . I seen a few guys say midway usa , midsouth shooters , and powder valley , all had it today . midway usa price was about $30 more than the others , for an 8 pound jug .
 

jimbires

Handloader
Aug 16, 2011
2,413
255
Brownells had 1 pound N570 yesterday , for a very short time . getting supplies is like hunting ; be in the right place , at the right time .
 
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