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Joined: Apr 2003
Posts: 6,857 Likes: 3
Campfire Tracker
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Campfire Tracker
Joined: Apr 2003
Posts: 6,857 Likes: 3 |
H4831 works great for 120s for me I was thinking about trying IMR 4831 I don't have any of the H-4831. What kind of velocities are you getting with the H-4831? 2900-2940 22" bbl
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Joined: Nov 2010
Posts: 37,243 Likes: 11
Campfire 'Bwana
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Campfire 'Bwana
Joined: Nov 2010
Posts: 37,243 Likes: 11 |
I tried some 7828 in mine and it loved it. It also shoots several other powders ok. Speer data would indicate you're leaving a few hundred fps on the table with that one. Did you clock it? DF
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Joined: Sep 2015
Posts: 181
Campfire Member
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OP
Campfire Member
Joined: Sep 2015
Posts: 181 |
I’m using up my RL-22, replacing it with RL-23.
Have a big can of MRP, very similar burn rate. It’s my go to Swede powder.
DF I use IMR-4831 for my Swede.
Why is abbreviate such a long word
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Joined: Sep 2015
Posts: 181
Campfire Member
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OP
Campfire Member
Joined: Sep 2015
Posts: 181 |
H4831 works great for 120s for me I was thinking about trying IMR 4831 I don't have any of the H-4831. What kind of velocities are you getting with the H-4831? 2900-2940 22" bbl That's not to shabby.
Why is abbreviate such a long word
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Joined: Nov 2010
Posts: 37,243 Likes: 11
Campfire 'Bwana
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Campfire 'Bwana
Joined: Nov 2010
Posts: 37,243 Likes: 11 |
I’m using up my RL-22, replacing it with RL-23.
Have a big can of MRP, very similar burn rate. It’s my go to Swede powder.
DF I use IMR-4831 for my Swede. Burn rates pretty close, all those in the same neighborhood.. DF
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Joined: Jul 2011
Posts: 1,792
Campfire Regular
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Campfire Regular
Joined: Jul 2011
Posts: 1,792 |
Agree with Dirtfarmer. With heavy bullets I used to use RL22, have replaced it with RL23. Norma MRP is very good.
RL26 has worked good also, heavier bullet the better. My model 70 did 3129 FPS with RL26.and 115gr Partitions.
RL23 did 3129 FPS with 115gr Nosler Partitions
RL17 also did over 3100 FPS with 110gr Accubonds. Had to back load off.
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Joined: Nov 2010
Posts: 37,243 Likes: 11
Campfire 'Bwana
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Campfire 'Bwana
Joined: Nov 2010
Posts: 37,243 Likes: 11 |
Agree with Dirtfarmer. With heavy bullets I used to use RL22, have replaced it with RL23. Norma MRP is very good.
RL26 has worked good also, heavier bullet the better. My model 70 did 3129 FPS with RL26.and 115gr Partitions.
RL23 did 3129 FPS with 115gr Nosler Partitions
RL17 also did over 3100 FPS with 110gr Accubonds. Had to back load off.
Did you get unburned powder residue with '26 in your Roberts? I was using heavy bullets and got granules in the chamber such that I couldn't chamber the next round. Once I shook it out, all was good. Swore off '26 in the Roberts. It's the cat's meow in the 7RM with 160's. I have a big jug and really like it. Just not in the Roberts. I have Pw Pro 4000 and StaBALL, just haven't tried either in the Roberts. Too many projects, not enough time.... DF
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Joined: Sep 2015
Posts: 181
Campfire Member
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OP
Campfire Member
Joined: Sep 2015
Posts: 181 |
After looking high and low for RL22 or MRP locally, I think I’m going to try IMR4831, Ramshot Hunter, and RL17. Hopefully, one of those will give acceptable results. If none of those work out I guess I’ll order some RL22 and/or MRP.
Why is abbreviate such a long word
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Joined: Nov 2010
Posts: 37,243 Likes: 11
Campfire 'Bwana
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Campfire 'Bwana
Joined: Nov 2010
Posts: 37,243 Likes: 11 |
After looking high and low for RL22 or MRP locally, I think I’m going to try IMR4831, Ramshot Hunter, and RL17. Hopefully, one of those will give acceptable results. If none of those work out I guess I’ll order some RL22 and/or MRP. Those are all good candicates. When you go to get more RL-22, get RL-23 instead. Better powder that will do about the same thing. DF
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Joined: Sep 2015
Posts: 181
Campfire Member
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OP
Campfire Member
Joined: Sep 2015
Posts: 181 |
After looking high and low for RL22 or MRP locally, I think I’m going to try IMR4831, Ramshot Hunter, and RL17. Hopefully, one of those will give acceptable results. If none of those work out I guess I’ll order some RL22 and/or MRP. Those are all good candicates. When you go to get more RL-22, get RL-23 instead. Better powder that will do about the same thing. DF I’ll keep that in mind.
Why is abbreviate such a long word
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Joined: Jan 2009
Posts: 1,504
Campfire Regular
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Campfire Regular
Joined: Jan 2009
Posts: 1,504 |
H4831sc with 115/120gn bullets in my Roberts'.
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Joined: Sep 2015
Posts: 181
Campfire Member
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OP
Campfire Member
Joined: Sep 2015
Posts: 181 |
H4831sc with 115/120gn bullets in my Roberts'. Thanks
Why is abbreviate such a long word
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Joined: Jul 2011
Posts: 1,792
Campfire Regular
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Campfire Regular
Joined: Jul 2011
Posts: 1,792 |
Do not remember any granules left over after firing. I usually use 215M primers or CCI250 primers
I shoot the RL23 and the MRP the most as I think they are a little more accurate. Like I said I had good luck with RL17
But do no use it much in that Caliber. I use it in my 7mm-08 mostly
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Joined: Jul 2011
Posts: 1,792
Campfire Regular
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Campfire Regular
Joined: Jul 2011
Posts: 1,792 |
I see you are using PP4000MR. Are you having any luck? I,m trying to make a load for my 7mm-08
So far limiter success, but last load using WLRM primers and 145gr Speer BT bullets I got 2895 FPS but SD was 28.4 not good.
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Joined: Nov 2007
Posts: 8,478 Likes: 3
Campfire Outfitter
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Campfire Outfitter
Joined: Nov 2007
Posts: 8,478 Likes: 3 |
So, what is everyone's favorite powder for Speer Grand Slams in the .257 Roberts? For any 120, my go-to is 43 grains of H414 and Fed 215 or 215M primers. .257 seem picky, inconsistent, but that has worked in several rifles for me. Tom
Anyone who thinks there's two sides to everything hasn't met a M�bius strip.
Here be dragons ...
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Joined: Jul 2010
Posts: 886
Campfire Regular
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Campfire Regular
Joined: Jul 2010
Posts: 886 |
No one said it so maybe I am old and out of date... I use IMR 4350 in my rem 722
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Joined: Sep 2015
Posts: 181
Campfire Member
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OP
Campfire Member
Joined: Sep 2015
Posts: 181 |
No one said it so maybe I am old and out of date... I use IMR 4350 in my rem 722 I was thinking about that as well. I saw that one in my Ken Waters book.
Why is abbreviate such a long word
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Joined: Nov 2010
Posts: 37,243 Likes: 11
Campfire 'Bwana
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Campfire 'Bwana
Joined: Nov 2010
Posts: 37,243 Likes: 11 |
No one said it so maybe I am old and out of date... I use IMR 4350 in my rem 722 Nothing wrong with being a vintage type guy, using vintage stuff. It worked back in the day; it works now. Sorta vintage myself. DF
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Joined: Dec 2004
Posts: 17,254 Likes: 1
Campfire Ranger
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Campfire Ranger
Joined: Dec 2004
Posts: 17,254 Likes: 1 |
H4831 works great for 120s for me I was thinking about trying IMR 4831 I don't have any of the H-4831. What kind of velocities are you getting with the H-4831? I used to shoot IMR4831 with the 120 Partition in a 22" short action 700 Roberts. It made around 2,800fps. Killed deer nicely.
Now with even more aplomb
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Joined: Sep 2015
Posts: 181
Campfire Member
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OP
Campfire Member
Joined: Sep 2015
Posts: 181 |
Good news! The gun shop called this morning and set back 1 lb each of RL23, and PP4000. So, it looks like I have a bunch of powders to try now. As soon a Grafs ships my MRP, I’ll have enough variables to keep me crazy for a while.
Why is abbreviate such a long word
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