What chronograph are you using and did you shoot both loads over it at the same time? I can pretty much guarantee that 3130 FPS is virtually impossible out of a standard lapua and a 26" barrel, or any length barrel for that matter. At even remotely safe pressures anyways.
New reloader powders RL-23 and RL-26
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What chronograph are you using and did you shoot both loads over it at the same time? I can pretty much guarantee that 3130 FPS is virtually impossible out of a standard lapua and a 26" barrel, or any length barrel for that matter. At even remotely safe pressures anyways.
340 Master
Member
Don,
Where does Norma MRP fall in QL burn rates and energy?
Thanks
Where does Norma MRP fall in QL burn rates and energy?
Thanks
65WSM
Well-Known Member
Norma MRP has the same burn rate as Hodgdon 4831 or VihtaVuori N-560. I note that MRP has an early pressure curve compared to the powders with similar burn rate.
340 Master
Member
65WSM,
Thanks for the info. For years I loaded my 340 Weatherby with RL 22 behind Nosler 225 gr Partitions ignited by Fed 215 primers. Acccuracy was good but I ran out of powder and it was hard to get so I decided I would try MRP. I am working on that now. I am also planning to try IMR 7828SSC, VV N560, and thinking about H 1000. My rifle is a stock Mark V 26" barrel and I am using Weatherby brass. Any insight would be helpful.
Thanks
Thanks for the info. For years I loaded my 340 Weatherby with RL 22 behind Nosler 225 gr Partitions ignited by Fed 215 primers. Acccuracy was good but I ran out of powder and it was hard to get so I decided I would try MRP. I am working on that now. I am also planning to try IMR 7828SSC, VV N560, and thinking about H 1000. My rifle is a stock Mark V 26" barrel and I am using Weatherby brass. Any insight would be helpful.
Thanks
Elkhunter1983
Well-Known Member
Getting 3000fps out of a 7mm rm with 65 gr RE 26 and a 168 berger no real pressure signs. For me at least that puts the burn rate faster than reloader 25.
Ross Douglas
Member
7mmRem Mag. 26 inch Win primer 69.1 gr RE 26 162 A-Max. 5 shot average 3013fps. ES 45.7
6mmRem. 29 inch Fed210 GMM primer 45.5 gr RE 23 105Honady HPBTM. 5 shot average 3216 fps.
ES 28.9
6mmRem. 29 inch Fed210 GMM primer 45.5 gr RE 23 105Honady HPBTM. 5 shot average 3216 fps.
ES 28.9
Ross Douglas
Member
Finally got my 300 WSM back. Rem 700 with 26 inch 1-12 twist. RE 23 69.0 gr win primer 190 VLD=3009. Signs of high pressure.
RE26 69.0gr win primer 190 VLD=3024. Pressure less than above load.
RE26 69.5gr=3069.
RE26 70.0gr=3110.pressure still good.
RE26 69.0gr win primer 190 VLD=3024. Pressure less than above load.
RE26 69.5gr=3069.
RE26 70.0gr=3110.pressure still good.
Crockett12
Well-Known Member
- Joined
- Jul 3, 2011
- Messages
- 132
I received my Handloader magazine yesterday and saw the advertisement for Reloader 23 and 26 -- which is the first I've heard of those powders. From reading all these posts, I'm certainly late to the party but unless I missed it -- I've got a question I haven't seen addressed here yet!
I read the advertisement and it says "Contains proprietary de-coppering additive" -- which is what raised my interest. I've tried the new IMR 4451 in a rifle which tends to foul easily with copper, which affects its accuracy. The IMR 4451 really helped that rifle with its fouling issue but it's a little fast for this rifle – a 270 WSM.
Although I haven't tried the IMR 7977 for a slower powder -- I was interested in the statement Alliant made about Reloader 23's de-coppering additive. Since the IMR 4451 really stopped this rifle from fouling – does Reloader 23 and 26 do the same thing?
I read the advertisement and it says "Contains proprietary de-coppering additive" -- which is what raised my interest. I've tried the new IMR 4451 in a rifle which tends to foul easily with copper, which affects its accuracy. The IMR 4451 really helped that rifle with its fouling issue but it's a little fast for this rifle – a 270 WSM.
Although I haven't tried the IMR 7977 for a slower powder -- I was interested in the statement Alliant made about Reloader 23's de-coppering additive. Since the IMR 4451 really stopped this rifle from fouling – does Reloader 23 and 26 do the same thing?
Crockett12
Well-Known Member
- Joined
- Jul 3, 2011
- Messages
- 132
I received my Handloader magazine yesterday and saw the advertisement for Reloader 23 and 26 -- which is the first I've heard of those powders. From reading all these posts, I'm certainly late to the party but unless I missed it -- I've got a question I haven't seen addressed here yet!
I read the advertisement and it says "Contains proprietary de-coppering additive" -- which is what raised my interest. I've tried the new IMR 4451 in a rifle which tends to foul easily with copper, which affects its accuracy. The IMR 4451 really helped that rifle with its fouling issue but it's a little fast for this rifle – a 270 WSM.
Although I haven't tried the IMR 7977 for a slower powder -- I was interested in the statement Alliant made about Reloader 23's de-coppering additive. Since the IMR 4451 really stopped this rifle from fouling – does Reloader 23 and 26 do the same thing?
I read the advertisement and it says "Contains proprietary de-coppering additive" -- which is what raised my interest. I've tried the new IMR 4451 in a rifle which tends to foul easily with copper, which affects its accuracy. The IMR 4451 really helped that rifle with its fouling issue but it's a little fast for this rifle – a 270 WSM.
Although I haven't tried the IMR 7977 for a slower powder -- I was interested in the statement Alliant made about Reloader 23's de-coppering additive. Since the IMR 4451 really stopped this rifle from fouling – does Reloader 23 and 26 do the same thing?
Lefty7mmstw
Well-Known Member
That's one of the often overlooked bonuses from using Alliant powders... All but rl17 contain de-coppering additive... It makes me smile to only have to clean a bore with hopes #9...
Crockett12
Well-Known Member
- Joined
- Jul 3, 2011
- Messages
- 132
Thanks for the info.
I was really surprised at how well the IMR 4451 worked. My 270 WSM fouls with copper fouling really quick and it also really affects the accuracy. With a clean bore and certain loads, it shoots groups just under an inch. After fouling, those groups open up to almost 2 inches – sometimes more! After starting with a clean bore the IMR 4451 eliminated all fouling and my accuracy held. I could hardly believe it when I ran a patch with Hoppe's #9 through the bore after a range session and it essentially came out clean with no sign of copper fouling. Then I used Wipe Out and still got no copper! I'm certainly sold on the de-coppering powders! So -- it looks like I'll be trying both the IMR 7977 and RL-23 in that rifle. Thanks again!
I was really surprised at how well the IMR 4451 worked. My 270 WSM fouls with copper fouling really quick and it also really affects the accuracy. With a clean bore and certain loads, it shoots groups just under an inch. After fouling, those groups open up to almost 2 inches – sometimes more! After starting with a clean bore the IMR 4451 eliminated all fouling and my accuracy held. I could hardly believe it when I ran a patch with Hoppe's #9 through the bore after a range session and it essentially came out clean with no sign of copper fouling. Then I used Wipe Out and still got no copper! I'm certainly sold on the de-coppering powders! So -- it looks like I'll be trying both the IMR 7977 and RL-23 in that rifle. Thanks again!
65WSM
Well-Known Member
Dear Mr Crocket:
IMR 7977 is too slow for the .270 WSM. The only application might be the very heavy for caliber 160 gr bullets. You can fill the case with as much as you like and the velocity will still be below 3000 fps.
Reloader 23 will work with the lighter bullets. It is a Bufors powder that Alliant is importing for our benifit. It will be temperature sensitive like other Bufors powders, RL-22 and RL-25. It may be smoky and produce a lot of carbon build up.
Reloader 26 Swiss powder from NitroCheme and should produce top velocities with the heaviest bullets in the .270 WSM. Reloader 17, the only other NitroCheme powder available in the United States produces amazing velocities compared to other powders in its 4350 burn rate range. The 150gr bullets should respond well to it. I have tried 130 and 140 gr bullets in the 6.5 WSM with top velocities at 130 gr. VV N-570 is still the top velocity powder with 140 gr.
My experience with the 270 WSM, is that MagPro, a very dense ball powder made at St Marks in Florida produced the highest velocities by a wide margin with the 140gr Berger that I prefer in that cartridge. I only have one pound of RL-26 so far, I bought it on sight at Cabelas and it was the last one they had.
IMR 7977 is too slow for the .270 WSM. The only application might be the very heavy for caliber 160 gr bullets. You can fill the case with as much as you like and the velocity will still be below 3000 fps.
Reloader 23 will work with the lighter bullets. It is a Bufors powder that Alliant is importing for our benifit. It will be temperature sensitive like other Bufors powders, RL-22 and RL-25. It may be smoky and produce a lot of carbon build up.
Reloader 26 Swiss powder from NitroCheme and should produce top velocities with the heaviest bullets in the .270 WSM. Reloader 17, the only other NitroCheme powder available in the United States produces amazing velocities compared to other powders in its 4350 burn rate range. The 150gr bullets should respond well to it. I have tried 130 and 140 gr bullets in the 6.5 WSM with top velocities at 130 gr. VV N-570 is still the top velocity powder with 140 gr.
My experience with the 270 WSM, is that MagPro, a very dense ball powder made at St Marks in Florida produced the highest velocities by a wide margin with the 140gr Berger that I prefer in that cartridge. I only have one pound of RL-26 so far, I bought it on sight at Cabelas and it was the last one they had.
65WSM:
Somehow your post left out a third powder made by NitroChemie that is available in the US, RL-33.
It also has the longer burning curve like RL-17
Interview with Alliant powder:
https://www.youtube.com/watch?v=RyFvH45bRFU
Somehow your post left out a third powder made by NitroChemie that is available in the US, RL-33.
It also has the longer burning curve like RL-17
Interview with Alliant powder:
https://www.youtube.com/watch?v=RyFvH45bRFU
coyotezapper
Well-Known Member
Both 23 and 26 are being advertised as being temperature insensitive.
