7mm Rem Mag Pet Loads

[JD338]

Looking for favorite loads as a reference point for a friend.
7mm Rem Mag 150 gr ABLR. What are you fellas loading?

JD338

 

[DrMike]

I haven't loaded this in my 7RM, Jim. Your query may compel me to look at it, however. Here's a QL projection, if that helps.

Cartridge : 7 mm Rem. Mag.(SAAMI)
Bullet : .284, 150, Nosler AccuBond LR 58734 G7
Useable Case Capaci: 73.277 grain H2O = 4.758 cm³
Cartridge O.A.L. L6: 3.290 inch = 83.57 mm
Barrel Length : 24.0 inch = 609.6 mm

Predicted Data for Indicated Charges of the Following Powders.
Matching Maximum Pressure: 60000 psi, or 413 MPa
or a maximum loading ratio or filling of 110 %
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 !

36 loads produced a Loading Ratio below user-defined minimum of 90%. These powders have been skipped.
Powder type Filling/Loading Ratio Charge Charge Vel. Prop.Burnt P max P muzz B_Time
% Grains Gramm fps % psi psi ms
--------------------------------- -----------------------------------------------------------------
Vihtavuori N570 108.7 77.4 5.01 3194 95.5 60000 15368 1.159 ! Near Maximum !
Alliant Reloder-33 109.0 80.9 5.24 3179 95.9 60000 15172 1.160 ! Near Maximum !
Alliant Reloder-25 105.4 70.8 4.59 3140 100.0 60000 13096 1.160 ! Near Maximum !
Norma MRP 2 107.6 72.7 4.71 3139 99.1 60000 14019 1.174 ! Near Maximum !
Norma MRP 97.5 68.7 4.45 3135 99.9 60000 13610 1.171 ! Near Maximum !
Vihtavuori N560 99.3 68.5 4.44 3132 98.3 60000 13969 1.165 ! Near Maximum !
IMR 7828 SSC 98.2 68.1 4.41 3124 98.7 60000 13559 1.154 ! Near Maximum !
IMR 7828 103.8 68.1 4.41 3124 98.7 60000 13559 1.154 ! Near Maximum !
Accurate MAGPRO 99.6 71.5 4.64 3122 97.2 60000 14058 1.172 ! Near Maximum !
Alliant Reloder-22 99.6 68.0 4.40 3107 99.5 60000 13425 1.171 ! Near Maximum !
Winchester WXR 102.2 68.3 4.43 3106 99.4 60000 13440 1.171 ! Near Maximum !
Hodgdon H1000 108.4 72.5 4.70 3104 98.9 60000 13248 1.150 ! Near Maximum !
Hodgdon Retumbo 110.0 74.7 4.84 3100 100.0 55481 13763 1.196 ! Near Maximum !
Ramshot Magnum 99.6 73.3 4.75 3092 99.8 60000 12874 1.165 ! Near Maximum !
ADI AR 2209 96.0 64.5 4.18 3070 99.3 60000 12741 1.158 ! Near Maximum !
Alliant Reloder-19 96.5 65.2 4.22 3066 99.4 60000 12797 1.166 ! Near Maximum !
Ramshot Hunter 92.1 64.3 4.16 3057 100.0 60000 12346 1.173 ! Near Maximum !
Norma 204 91.6 63.9 4.14 3044 99.2 60000 12488 1.165 ! Near Maximum !
Hodgdon H4831 SC 97.8 66.8 4.33 3044 98.0 60000 12661 1.163 ! Near Maximum !
Hodgdon H4831 101.8 66.8 4.33 3044 98.0 60000 12661 1.163 ! Near Maximum !
Norma URP 91.6 61.2 3.97 3034 100.0 60000 11819 1.179 ! Near Maximum !
Accurate 4350 90.8 61.4 3.98 3029 100.0 60000 11795 1.198 ! Near Maximum !
Winchester Supreme 780 95.4 67.9 4.40 3020 99.3 60000 12187 1.172 ! Near Maximum !
IMR 4831 96.2 62.2 4.03 3016 100.0 60000 11572 1.188 ! Near Maximum !
Vihtavuori N165 101.9 68.1 4.41 3014 99.6 60000 11968 1.176 ! Near Maximum !
Accurate 3100 99.7 67.4 4.36 3012 100.0 60000 11870 1.202 ! Near Maximum !
Hodgdon H4350 94.2 62.2 4.03 3006 99.7 60000 11803 1.168 ! Near Maximum !
IMR 4350 92.4 62.1 4.02 3005 99.8 60000 11777 1.168 ! Near Maximum !
Vihtavuori N160 101.9 66.0 4.28 3000 98.5 60000 11988 1.169 ! Near Maximum !
Hodgdon Hybrid 100V 94.1 61.5 3.98 2991 100.0 60000 10927 1.180 ! Near Maximum !
Vihtavuori N170 110.0 73.5 4.76 2985 93.2 57536 12857 1.207 ! Near Maximum !

 

[Guy Miner]

Probably the most accurate handload I ever used in my 7mm Rem mag was suggested during a phone call to the Sierra tech guys:

65 gr RL-22
160 gr SPBT (I ended up eventually substituting Nosler, but the Sierra was indeed very good)
Federal 215 magnum primer (match grade)

This runs about 3,000-3100 fps with excellent accuracy in several different 7mm Rem mags I've tried.

NOTE! This is two grains OVER Nosler's listed max for a 160 and RL-22, but is published by Sierra and Alliant as a max level load. It did shoot well in at least four different 7mm Rem mags I tried, three Remingtons and a Ruger, with no problems. I do however recommend working carefully up for the individual rifle.

Regards, Guy

 

[JD338]

Mike and Guy,

Thank you, this is exactly what I was looking for. I'm thinking RL 22 would be a good powder to start with.

JD338

 

[SJB358]

I'm running 68.5 grains of Norma MRP in my 7mm Rem Mag with the 150 Swift SII. Does about 3175 outta my rifle with WW brass and CCI250's. The 150's are really awesome in the 7's. I bet you'll have great luck with RL22 and 7828.

 

[Dwh7271]

JD,
Can't go wrong with 65 RL22 and the 160 AB.
Haven't messed with the 150 though.

 

[FOTIS]

start at 67 gr RL22 work up

 

[ksubuck]

IMR 4350 92.4 62.1 4.02 3005 99.8 60000 11777 1.168 ! Near Maximum !

Dr. Mike and all. I was just reading through the quickload data and was a little surprised to see this. My accuracy load for 150 LRABs in my rifle is 62.0g IMR4350 which clocks at 3019fps in a 24 inch tube. With a COAL of 3.250, which puts me off the lands about 0.175, runs 0.6 MOA.

My question is this. Does quickload predict what the most accurate load would be for each given powder? Or is this just a fluke?

 

[DrMike]

IMR 4350 92.4 62.1 4.02 3005 99.8 60000 11777 1.168 ! Near Maximum !

Dr. Mike and all. I was just reading through the quickload data and was a little surprised to see this. My accuracy load for 150 LRABs in my rifle is 62.0g IMR4350 which clocks at 3019fps in a 24 inch tube. With a COAL of 3.250, which puts me off the lands about 0.175, runs 0.6 MOA.

My question is this. Does quickload predict what the most accurate load would be for each given powder? Or is this just a fluke?

QL does not predict what will be the most accurate load. I suspect it would be possible to predict accuracy potential with a fair degree of reliability by measuring barrel time. However, I have never taken the time to do that, choosing instead to use barrel time as a rough measure of potential accuracy.

 

[Elkman]

My most accurate load in the past was always 61 of H-4350 with a 162 gr. HBTSP, bullet. I had very good accuracy recently with 66 gr, of H-1000 with the same bullet. This was a sub 1/2 min load, but a little light for velocity. After 20 years in the safe my first 10 groups have all been under .800. I think a few more grains of H-1000 would really be a great load, withe the 162's, however time marches on so the 160 AB's are loaded behind 60 gr. of H-4350, .735 and I am headed out to hunt.

 

[ksubuck]

I figured it wasn't predictive of an accuracy load, but also didn't want to be missing out on something. Still nice to see some consistency between predicted velocities and observed velocities. I suppose someday when the safe it too full I will have to invest in QL for something to play with.

 

[DrMike]

I suppose someday when the safe it too full I will have to invest in QL for something to play with.

QL is worth the small price required to acquire the program.

 

[desertcj]

A lot of times, with magnums...they like to be pushed pretty hard. I don't think that's a rule or anything but it does work out nicely when it works that way.