300 RUM Sendero done!!!

W

Woodycreek

Handloader
Aug 2, 2007
2,240
0
I finally have the setup i have wanted and a good load for it. Setup includes Jewell trigger, Leopold Mark 4 rings and mount, VX-L LR 4.5-14-56, Vias muzzlebrake, Simms recoil pad, and skim bedding.

200gr AccuBond
96gr Retumbo
Remington brass
Fed. 215 mag match primer
3228 fps avg.

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Woodycreek

Very nice! She is a shooter, congratulations.

JD338
 
Jim,

Thanks! Good luck to you and everyone else here during hunting season. I hope i can try her out during deer season when it starts next saturday.
 
Brian,

I wish you the best this season, you defiantly have the rig to get it done.

My rifle season open on 11/15.

JD338
 
Sweet! great shooting!!!!!!!!!!!!!!!!!!!!
 
Super rig that delivers the goods. It always feels good to know that you have what it takes to take the game you are after. Congratulations.
 
Beautiful rifle, your set for a season or two.
As it is said (get er done).

Blessings,
Dan
 
I was curious so I ran the #'s. My rum topped out at 93-94 gr Anyway FYI

Cartridge : .300 Rem Ultra Mag
Bullet : .308, 200, Nosler AccuBond 54618
Cartridge O.A.L. L6: 3.598 inch or 91.39 mm
Barrel Length : 26.0 inch or 660.4 mm
Powder : Hodgdon Retumbo

Predicted data by increasing and decreasing the given charge,
incremented in steps of 3.0% 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

-30.0 73 67.20 2171 2093 23447 9617 93.0 1.985
-27.0 77 70.08 2266 2280 26064 10151 95.4 1.910
-24.0 80 72.96 2361 2475 28987 10626 97.3 1.838
-21.0 83 75.84 2456 2678 32247 11032 98.7 1.767
-18.0 86 78.72 2550 2887 35891 11360 99.6 1.700
-15.0 89 81.60 2642 3100 39967 11601 100.0 1.620
-12.0 92 84.48 2732 3316 44534 11775 100.0 1.540
-09.0 95 87.36 2821 3533 49659 11939 100.0 1.466
-06.0 99 90.24 2907 3753 55421 12094 100.0 1.396 ! Near Maximum !
-03.0 102 93.12 2992 3975 61912 12241 100.0 1.330 ! Near Maximum !
+00.0 105 96.00 3075 4200 69147 12377 100.0 1.268 !DANGEROUS LOAD-DO NOT USE!
+03.0 108 98.88 3158 4428 77217 12504 100.0 1.210 !DANGEROUS LOAD-DO NOT USE!
+06.0 111 101.76 3239 4660 86249 12620 100.0 1.155 !DANGEROUS LOAD-DO NOT USE!
+09.0 114 104.65 3320 4896 96387 12725 100.0 1.103 !DANGEROUS LOAD-DO NOT USE!
+12.0 117 107.53 3401 5137 107806 12817 100.0 1.054 !DANGEROUS LOAD-DO NOT USE!
+15.0 121 110.41 3482 5384 120723 12896 100.0 1.007 !DANGEROUS LOAD-DO NOT USE!
 
Thanks guys! It took some time and money to get this rig the way i wanted it. So far its paid off for me on paper.

POP,

You got my attention with Quickload. The only pressure signs i have notice is cratered primers but i have had that with factory ammo?
 
WoodyCreek, very nice stick and I wish you good luck hunting with your RUM. FWIW, my 700 CDL shoots best with 95.0 Retumbo.
 
Yote,

Thanks and good luck also with your RUM. My rig seems to like Retumbo around 95.5-96.0 grains. I had to go with 96.0 because its more than 95.5 :lol:

Brian
 
Woody....
Absolutely good looking RUM.... I have the earlier version of the Sendero w/ vias brake... it helped a lot !!

FWIW (again) Retumbo & 180gr b-tips and RL-25 & 200gr A-bonds with mine... Retumbo and the 200gr-ers don't like each other.
 
Nice shooting rifle. Will this be mounted in the door of a Black hawk or will you have it mounted on a HumV? Will you be in Afghanistan or on a secret mission to Iran. :lol: :lol: :lol: :lol:

All kidding aside, you should be able to really reach out with that rig. I hope you are successful this hunting season.
 
Woodycreek":34n0a8rk said:
Thanks guys! It took some time and money to get this rig the way i wanted it. So far its paid off for me on paper.

POP,

You got my attention with Quickload. The only pressure signs i have notice is cratered primers but i have had that with factory ammo?
Click to expand...

My 300 rums always topped out a 3150 max. If I run the same #'s with the 30-378 this is what you get


Cartridge : .30-378 Weath. Mag.
Bullet : .308, 200, Nosler AccuBond 54618
Cartridge O.A.L. L6: 3.655 inch or 92.84 mm
Barrel Length : 26.0 inch or 660.4 mm
Powder : Hodgdon Retumbo

Predicted data by increasing and decreasing the given charge,
incremented in steps of 3.0% 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

-30.0 68 74.90 2236 2220 22885 11069 93.2 2.001
-27.0 71 78.11 2331 2414 25334 11700 95.4 1.930
-24.0 74 81.32 2427 2616 28045 12274 97.2 1.861
-21.0 77 84.53 2523 2826 31052 12781 98.6 1.796
-18.0 79 87.74 2618 3043 34383 13211 99.5 1.732
-15.0 82 90.95 2711 3265 38082 13554 100.0 1.662
-12.0 85 94.16 2803 3490 42187 13817 100.0 1.583
-09.0 88 97.37 2893 3718 46749 14064 100.0 1.509
-06.0 91 100.58 2982 3948 51739 14302 100.0 1.440
-03.0 94 103.79 3068 4181 57202 14531 100.0 1.375 ! Near Maximum !
+00.0 97 107.00 3154 4417 63198 14752 100.0 1.313 !DANGEROUS LOAD-DO NOT USE!
+03.0 100 110.21 3238 4656 69784 14963 100.0 1.256 !DANGEROUS LOAD-DO NOT USE!
+06.0 103 113.42 3321 4899 77029 15164 100.0 1.202 !DANGEROUS LOAD-DO NOT USE!
+09.0 106 116.63 3404 5146 85010 15355 100.0 1.150 !DANGEROUS LOAD-DO NOT USE!
+12.0 108 119.84 3486 5398 93820 15535 100.0 1.102 !DANGEROUS LOAD-DO NOT USE!
+15.0 111 123.05 3568 5654 103569 15703 100.0 1.056 !DANGEROUS LOAD-DO NOT USE!

This is the reason that most think the rum is so close to the 30-378. The Wby brass is softer and shows pressure signs way before the superior Rum brass do.

How can 2 cartridges with 20 grains difference in case capacity have the same performance, and in this case have the RUM outdo the 30-378?

Anyway this is just a q/l prediction and you have to account for individual barrels. If you feel comfortable keep the load, just something to think about.
Good luck
 
Powerstoke,

That Vias brake makes a world of difference!

Bullet,

A secret mission to Afghanistan or Iran sounds like a good idea since the all knowing President can't make up his #$% mind! And the RUM is mounted on the Hummer since the Blackhawk is on backorder from Cabelas :lol:

corbin 9191 Thanks

POP,

Don't know how its beating the 30-378 but i was shocked at the chrono results. Thanks again for the heads up.
 
Senderos are like Farrari's
They look like they're going 200 mph when they are sitting still.
I had two and they are accurate beyond belief. They are appropriatly heavy and that was my downfall. You have a fine machine and it will do all you hoped and don't they just look coooool 8)
Enjoy :grin:
Greg
 
Greg,
It does have a cool factor until the end of the day way back in the woods and you have to hump it and the treestand and the...............
 
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