Has your chrono ever

OU812

Handloader
Apr 18, 2006
2,099
2
made you want to cry?

So here I am fat dumb and happy thinking my 8mm rem mag should spit 220 grain hornadys with 82.5 gr RL-25 at around 2930 or better but NOOOOOOOOOOO, my 1/2 moa load scoots along at a blistering 2750 :cry: . I tried like hell to make that 7 a 9 but it just was not going to happen. Back to the drawing board, anyone who shoots a 8mm with a 220 want to share powder of choice info?

Lucky for me I shoot for group size then on a later day shoot for speed, keeps me from being on an emotional roller coaster of highs and lows on the same day.


Bill
 
I used to have an 8mm Rem Mag that I loved but it since has been sent packing. I should've kept that rifle. Of the many I have sold or traded that is the one I regret the most. It shot the best with 220 grain Gamekings on top of H4831SC and FED 215 Mag primers. I do not remember the charge. Its good to hear someone else has one of these. Definately a contender with the 338 Win Mag I always wished I couldve gotten a 225-240 grain Nosler bullet to shoot in it. Oh well, ancient history now.

As for having the chronograph make my jaw drop for not hitting within 200 fps of what I expected, I can say more than once!
 
OU812":maevkqwt said:
made you want to cry?

So here I am fat dumb and happy thinking my 8mm rem mag should spit 220 grain hornadys with 82.5 gr RL-25 at around 2930 or better but NOOOOOOOOOOO, my 1/2 moa load scoots along at a blistering 2750 :cry: . I tried like hell to make that 7 a 9 but it just was not going to happen. Back to the drawing board, anyone who shoots a 8mm with a 220 want to share powder of choice info?

Lucky for me I shoot for group size then on a later day shoot for speed, keeps me from being on an emotional roller coaster of highs and lows on the same day.


Bill

Same here Bill, I really tried to get the 250 AB out of my 338WM up to 2750, but it just wasn't happening.. It is shooting just fine though at 2700... I would imagine RL22 or 25 would get it up there though. Really seems like the 8RM should be capable of 2900-3000 with a 220 though? Wished I had some data for you to try...

Heck, a 220 at 2750 isn't all bad! Just think of it as a long 325WSM!!!! :twisted:

Sorry, had to say it!
 
80 h4831 :wink: 3100 fps from my 26" mcGowen barrel

Cartridge : 8 mm Rem. Mag.
Bullet : .323, 220, Hornady SP 3238
Useable Case Capaci: 86.198 grain H2O = 5.597 cm³
Cartridge O.A.L. L6: 3.600 inch = 91.44 mm
Barrel Length : 24.0 inch = 609.6 mm

Predicted Data for Indicated Charges of the Following Powders.
Matching Maximum Pressure: 65000 psi, or 448 MPa
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 !

163 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 111.1 93.1 6.03 3054 97.1 65000 15103 1.156 ! Near Maximum !
ADI AR 2218 114.3 96.7 6.27 3046 97.0 65000 15327 1.140 ! Near Maximum !
Alliant Reloder-50 117.9 101.4 6.57 3043 96.9 65000 15230 1.173 ! Near Maximum !
Hodgdon H870 117.7 96.6 6.26 3034 98.5 65000 14603 1.158 ! Near Maximum !
Hodgdon Retumbo 114.9 91.8 5.95 3022 100.0 65000 13327 1.152 ! Near Maximum !
Norma MRP 2 110.2 87.6 5.67 2990 99.8 65000 13604 1.173 ! Near Maximum !
Ramshot Magnum (Big Boy) 104.2 88.7 5.74 2988 99.8 65000 13354 1.157 ! Near Maximum !
PB Clermont PCL 517 104.6 88.7 5.75 2987 99.8 65000 13343 1.157 ! Near Maximum !
SNPE Vectan SP 12 104.4 88.6 5.74 2986 99.8 65000 13313 1.157 ! Near Maximum !
Vihtavuori N560 101.8 82.7 5.36 2983 99.3 65000 13614 1.165 ! Near Maximum !
Alliant Reloder-25 108.0 85.3 5.53 2981 100.0 65000 12613 1.161 ! Near Maximum !
Norma MRP 100.0 82.9 5.37 2981 100.0 65000 13115 1.172 ! Near Maximum !
Accurate MAGPRO 102.1 86.2 5.59 2977 98.4 65000 13751 1.172 ! Near Maximum !
IMR 7828 106.3 82.1 5.32 2973 99.5 65000 13160 1.155 ! Near Maximum !
IMR 7828 SSC 100.6 82.1 5.32 2973 99.5 65000 13160 1.155 ! Near Maximum !
ADI AR 2213 101.7 81.7 5.29 2961 99.5 65000 13062 1.153 ! Near Maximum !
ADI AP 2214 105.5 87.0 5.64 2959 99.7 65000 12879 1.150 ! Near Maximum !
Alliant Reloder-22 102.1 82.0 5.31 2956 99.9 65000 13009 1.172 ! Near Maximum !
Raufoss RA15 102.1 82.0 5.31 2956 99.9 65000 13009 1.172 ! Near Maximum !
Bofors RP5/NP ~approximation 102.1 82.0 5.31 2956 99.9 65000 13009 1.172 ! Near Maximum !
Hodgdon H1000 110.9 87.2 5.65 2956 99.7 65000 12841 1.150 ! Near Maximum !
Winchester WXR 104.8 82.4 5.34 2956 99.9 65000 13034 1.172 ! Near Maximum !
Vihtavuori 20N29 121.7 104.1 6.74 2956 94.0 65000 13909 1.161 ! Near Maximum !
Accurate 8700 123.6 100.6 6.52 2948 96.2 65000 13534 1.153 ! Near Maximum !
SNPE Vectan SP 13 121.4 98.6 6.39 2942 96.1 65000 13509 1.167 ! Near Maximum !
PB Clermont PCL 513/520/9520 123.3 100.1 6.49 2940 95.0 65000 13577 1.164 ! Near Maximum !
Bofors RP5 NT ~approximation 105.4 85.4 5.53 2931 98.2 65000 12985 1.156 ! Near Maximum !
Rottweil R905 103.4 81.5 5.28 2928 99.2 65000 12777 1.171 ! Near Maximum !
Hodgdon US 869 118.7 100.5 6.51 2926 91.3 65000 13625 1.162 ! Near Maximum !
Vihtavuori 24N41 112.9 95.6 6.19 2926 91.2 65000 13539 1.155 ! Near Maximum !
Hodgdon 50BMG 118.9 95.9 6.22 2926 87.4 65000 13773 1.161 ! Near Maximum !
ADI AR 2209 98.5 77.9 5.05 2917 99.9 65000 12351 1.161 ! Near Maximum !
Alliant Reloder-19 99.1 78.8 5.10 2916 99.9 65000 12419 1.168 ! Near Maximum !
Bofors RP14 ~approximation 99.8 79.3 5.14 2909 99.9 65000 12334 1.169 ! Near Maximum !
Ramshot Hunter 94.6 77.7 5.03 2902 100.0 65000 11902 1.176 ! Near Maximum !
Hodgdon H4831 SC 100.3 80.6 5.22 2896 99.0 65000 12347 1.165 ! Near Maximum !
Hodgdon H4831 104.4 80.6 5.22 2896 99.0 65000 12347 1.165 ! Near Maximum !
Bofors RP4 ~approximation 97.1 77.2 5.00 2894 99.8 65000 12117 1.168 ! Near Maximum !
Raufoss RA4 97.1 77.2 5.00 2894 99.8 65000 12117 1.168 ! Near Maximum !
Norma 204 94.1 77.2 5.00 2894 99.8 65000 12117 1.168 ! Near Maximum !
Vihtavuori N170 113.9 89.5 5.80 2887 95.5 65000 12828 1.183 ! Near Maximum !
Vihtavuori N550 91.6 74.3 4.82 2877 100.0 65000 11537 1.186 ! Near Maximum !
Somchem S385 99.2 79.7 5.17 2877 100.0 65000 11808 1.188 ! Near Maximum !
Norma URP 94.2 74.0 4.80 2876 100.0 65000 11388 1.183 ! Near Maximum !
Bofors RP19 ~approximation 94.2 74.1 4.80 2876 100.0 65000 11385 1.183 ! Near Maximum !
Somchem S365 95.9 75.8 4.91 2873 100.0 65000 11044 1.190 ! Near Maximum !
Winchester Supreme 780 97.7 81.9 5.31 2871 99.8 65000 11813 1.174 ! Near Maximum !
Accurate 4350 97.5 74.1 4.80 2870 100.0 65000 11330 1.200 ! Near Maximum !
Rottweil R904 98.1 76.8 4.98 2869 99.4 65000 11877 1.169 ! Near Maximum !
Bofors RP4 NT ~approximation 94.8 76.5 4.96 2866 100.0 65000 11587 1.181 ! Near Maximum !
Vihtavuori N165 104.4 82.1 5.32 2863 100.0 65000 11561 1.179 ! Near Maximum !
TLP A 502(RH) ,test only 129.5 100.7 6.52 2860 81.0 65000 12985 1.159 ! Near Maximum !
Accurate 3100 108.0 81.2 5.26 2859 100.0 65000 11404 1.203 ! Near Maximum !
Lovex D100 110.4 94.4 6.11 2858 92.0 65000 12520 1.172 ! Near Maximum !
IMR 4831 98.8 75.2 4.87 2858 100.0 65000 11140 1.191 ! Near Maximum !
Hodgdon H4350 96.8 75.3 4.88 2854 100.0 65000 11408 1.172 ! Near Maximum !
IMR 4350 95.1 75.1 4.87 2853 100.0 65000 11379 1.172 ! Near Maximum !
Vihtavuori N160 104.7 79.7 5.17 2853 99.4 65000 11668 1.172 ! Near Maximum !
Lovex S070 94.2 74.0 4.80 2851 100.0 65000 11373 1.187 ! Near Maximum !
Somchem S361 97.1 82.2 5.32 2841 99.0 65000 11689 1.180 ! Near Maximum !
Rottweil R907 92.2 71.9 4.66 2836 100.0 65000 11254 1.180 ! Near Maximum !
NC A3502 ,test only 127.8 99.3 6.44 2830 77.8 65000 12983 1.160 ! Near Maximum !
Hodgdon Hybrid 100V 100.0 74.3 4.81 2829 100.0 65000 10510 1.185 ! Near Maximum !
Lovex S065 93.2 72.4 4.69 2826 100.0 65000 10931 1.187 ! Near Maximum !
Bofors RP3 NT ~approximation 91.0 71.8 4.66 2819 100.0 65000 10732 1.173 ! Near Maximum !
Accurate 2700 90.5 74.2 4.81 2792 100.0 65000 10653 1.184 ! Near Maximum !
Vihtavuori N150 94.6 70.9 4.60 2768 100.0 65000 9951 1.195 ! Near Maximum !
Accurate 4064 90.7 67.4 4.37 2765 100.0 65000 9936 1.223 ! Near Maximum !
Vihtavuori N135 90.8 65.4 4.24 2714 100.0 65000 9201 1.208 ! Near Maximum !
V1734 7-multiperf ,test only 145.5 113.1 7.33 2467 48.9 65000 8849 1.217 ! Near Maximum !
IMR TrailBoss 150.0 40.2 2.60 2074 100.0 65000 4641 1.279 ! Near Maximum !
ADI AS 25 BP 150.0 40.2 2.60 2074 100.0 65000 4641 1.279 ! Near Maximum !
Vihtavuori N32C Tin Star 100.3 39.7 2.58 2062 100.0 65000 4565 1.283 ! Near Maximum !
 
Bill,

Using a chronograph is a bitter sweet experience. :grin:
I used RL 25 in the 338 RUM and the accuracy was excellent but the speed just wasn't there. That is why I switched to Retumbo.
It mught be worth a try if H4831 doesn't get you where you want to be.

JD338
 
DrMike":1j3opuk7 said:
A chronograph has ruined many a good rifle.

You ain't kidding Mike! Very eye opening a few times!

Good luck Bill, sounds like that 8RM will scream with the right powder!
 
You are right about that, I sold my 325 WSM when I found out it was getting 2750 fps with 200 gr bullets, I wondered what it would do better than my 35 Whelen with 225's at 2750 fps. The good news was it went towards my 264 WM as a trade in when Corlane's built it and the chronograph said this one was good :)
 
gerry":1umjf1ak said:
You are right about that, I sold my 325 WSM when I found out it was getting 2750 fps with 200 gr bullets, I wondered what it would do better than my 35 Whelen with 225's at 2750 fps. The good news was it went towards my 264 WM as a trade in when Corlane's built it and the chronograph said this one was good :)

I never had an 8 Mag, but I was thinking about my .35 Whelen also. I am actually getting a shade less than 2700 fps with the 225 AccuBond (and sub-MOA accuracy too, I might add! :) ), but for less than 60 grains of powder I'd say it's a bargain.

As to the pain a chronograph can inflict: I'd say the majority of that, for me, has been the multiplication of unanswered questions it caused rather than the torrent of comprehension I expected. What I am saying here is that it has raised far more questions than it has answered.

I think my chronograph has experienced enough of my wrath to keep it fairly honest, at least...I shot one of the steel rods that supports the diffuser. Next time it'll probably be *lights out.*
 
Another one limited to 105% loading density

Cartridge : 8 mm Rem. Mag.
Bullet : .323, 220, Hornady SP 3238
Useable Case Capaci: 86.198 grain H2O = 5.597 cm³
Cartridge O.A.L. L6: 3.600 inch = 91.44 mm
Barrel Length : 24.0 inch = 609.6 mm

Predicted Data for Indicated Charges of the Following Powders.
Matching Maximum Pressure: 65000 psi, or 448 MPa
or a maximum loading ratio or filling of 106 %
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 !

163 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
--------------------------------- -----------------------------------------------------------------
Ramshot Magnum (Big Boy) 104.2 88.7 5.74 2988 99.8 65000 13354 1.157 ! Near Maximum !
PB Clermont PCL 517 104.6 88.7 5.75 2987 99.8 65000 13342 1.157 ! Near Maximum !
SNPE Vectan SP 12 104.4 88.6 5.74 2986 99.8 65000 13314 1.157 ! Near Maximum !
Vihtavuori N560 101.8 82.7 5.36 2984 99.3 65000 13615 1.165 ! Near Maximum !
Norma MRP 100.0 82.9 5.37 2981 100.0 65000 13116 1.171 ! Near Maximum !
Accurate MAGPRO 102.1 86.2 5.59 2977 98.4 65000 13751 1.171 ! Near Maximum !
IMR 7828 SSC 100.6 82.1 5.32 2974 99.5 65000 13161 1.155 ! Near Maximum !
IMR 7828 106.0 81.8 5.30 2963 99.5 64267 13135 1.161 ! Near Maximum !
ADI AR 2213 101.7 81.7 5.29 2961 99.5 65000 13062 1.153 ! Near Maximum !
ADI AP 2214 105.5 87.0 5.64 2958 99.7 65000 12878 1.150 ! Near Maximum !
Alliant Reloder-22 102.1 82.0 5.31 2957 99.9 65000 13010 1.171 ! Near Maximum !
Raufoss RA15 102.1 82.0 5.31 2957 99.9 65000 13010 1.171 ! Near Maximum !
Bofors RP5/NP ~approximation 102.1 82.0 5.31 2957 99.9 65000 13010 1.171 ! Near Maximum !
Winchester WXR 104.8 82.4 5.34 2956 99.9 65000 13035 1.172 ! Near Maximum !
Bofors RP5 NT ~approximation 105.4 85.4 5.53 2931 98.2 65000 12985 1.156 ! Near Maximum !
Alliant Reloder-25 106.0 83.8 5.43 2928 100.0 60857 12519 1.196 ! Near Maximum !
Rottweil R905 103.4 81.5 5.28 2928 99.2 65000 12778 1.171 ! Near Maximum !
ADI AR 2209 98.5 77.9 5.05 2917 99.9 65000 12351 1.161 ! Near Maximum !
Alliant Reloder-19 99.1 78.8 5.10 2916 99.9 65000 12419 1.168 ! Near Maximum !
Bofors RP14 ~approximation 99.8 79.3 5.14 2909 99.9 65000 12334 1.169 ! Near Maximum !
Ramshot Hunter 94.6 77.7 5.03 2902 100.0 65000 11902 1.176 ! Near Maximum !
Hodgdon H4831 104.4 80.6 5.22 2896 99.0 65000 12348 1.165 ! Near Maximum !
Hodgdon H4831 SC 100.3 80.6 5.22 2896 99.0 65000 12348 1.165 ! Near Maximum !
Bofors RP4 ~approximation 97.1 77.2 5.00 2893 99.8 65000 12116 1.168 ! Near Maximum !
Raufoss RA4 97.1 77.2 5.00 2893 99.8 65000 12116 1.168 ! Near Maximum !
Norma 204 94.1 77.2 5.00 2893 99.8 65000 12116 1.168 ! Near Maximum !
Vihtavuori N570 106.0 88.8 5.75 2879 94.6 54029 14425 1.260
Vihtavuori N550 91.6 74.3 4.82 2877 100.0 65000 11536 1.186 ! Near Maximum !
Somchem S385 99.2 79.7 5.17 2877 100.0 65000 11808 1.188 ! Near Maximum !
Norma URP 94.2 74.0 4.80 2876 100.0 65000 11388 1.183 ! Near Maximum !
Bofors RP19 ~approximation 94.2 74.1 4.80 2876 100.0 65000 11385 1.183 ! Near Maximum !
Somchem S365 95.9 75.8 4.91 2873 100.0 65000 11043 1.190 ! Near Maximum !
Winchester Supreme 780 97.7 81.9 5.31 2871 99.8 65000 11814 1.174 ! Near Maximum !
Accurate 4350 97.5 74.1 4.80 2870 100.0 65000 11330 1.200 ! Near Maximum !
Rottweil R904 98.1 76.8 4.98 2868 99.4 65000 11877 1.169 ! Near Maximum !
Bofors RP4 NT ~approximation 94.8 76.5 4.96 2866 100.0 65000 11586 1.181 ! Near Maximum !
Norma MRP 2 106.0 84.2 5.46 2866 99.0 56328 13288 1.252
Vihtavuori N165 104.5 82.1 5.32 2864 100.0 65000 11561 1.179 ! Near Maximum !
IMR 4831 98.8 75.2 4.87 2858 100.0 65000 11140 1.191 ! Near Maximum !
Hodgdon H4350 96.8 75.3 4.88 2854 100.0 65000 11407 1.172 ! Near Maximum !
IMR 4350 95.0 75.1 4.87 2853 100.0 65000 11378 1.172 ! Near Maximum !
Vihtavuori N160 104.7 79.7 5.17 2853 99.4 65000 11668 1.172 ! Near Maximum !
Lovex S070 94.2 74.0 4.80 2851 100.0 65000 11373 1.187 ! Near Maximum !
Somchem S361 97.1 82.2 5.32 2841 99.0 65000 11689 1.180 ! Near Maximum !
Rottweil R907 92.2 71.9 4.66 2835 100.0 65000 11254 1.180 ! Near Maximum !
Hodgdon Hybrid 100V 100.0 74.3 4.81 2829 100.0 65000 10510 1.185 ! Near Maximum !
Lovex S065 93.2 72.4 4.69 2826 100.0 65000 10931 1.187 ! Near Maximum !
Bofors RP3 NT ~approximation 91.0 71.8 4.65 2819 100.0 65000 10732 1.173 ! Near Maximum !
Hodgdon H1000 106.0 83.3 5.40 2808 98.6 54868 12485 1.243
Accurate 3100 106.0 79.7 5.16 2807 100.0 60882 11318 1.240 ! Near Maximum !
Accurate 2700 90.5 74.2 4.81 2792 100.0 65000 10653 1.184 ! Near Maximum !
Vihtavuori N150 94.6 70.9 4.60 2767 100.0 65000 9951 1.195 ! Near Maximum !
Accurate 4064 90.7 67.4 4.37 2765 100.0 65000 9937 1.223 ! Near Maximum !
Hodgdon Retumbo 106.0 84.7 5.49 2762 99.7 48269 12935 1.322
ADI AR 2218 106.0 89.7 5.81 2737 91.5 47768 14018 1.322
Lovex D100 106.0 90.6 5.87 2716 89.4 55173 11934 1.263
Vihtavuori N135 90.8 65.4 4.24 2714 100.0 65000 9201 1.208 ! Near Maximum !
Vihtavuori 24N41 106.0 89.7 5.81 2693 86.6 50486 12455 1.300
Vihtavuori N170 106.0 83.3 5.40 2657 91.8 50238 11868 1.334
Hodgdon H870 106.0 87.0 5.64 2652 93.0 43030 13151 1.406
Alliant Reloder-50 106.0 91.1 5.90 2614 89.4 40707 13428 1.461
Hodgdon US 869 106.0 89.7 5.81 2510 82.5 41151 11604 1.441
Hodgdon 50BMG 106.0 85.5 5.54 2508 78.3 41374 11562 1.435
SNPE Vectan SP 13 106.0 86.1 5.58 2460 87.0 37786 11421 1.505
Vihtavuori 20N29 106.0 90.6 5.87 2413 82.4 35727 11417 1.540
PB Clermont PCL 513/520/9520 106.0 86.1 5.58 2398 83.8 35495 11086 1.546
Accurate 8700 106.0 86.2 5.59 2374 84.2 34606 11013 1.553
NC A3502 ,test only 106.0 82.4 5.34 2205 59.3 32924 8625 1.590
TLP A 502(RH) ,test only 106.0 82.4 5.34 2184 63.9 30944 9086 1.631
Vihtavuori N32C Tin Star 100.3 39.7 2.58 2062 100.0 65000 4565 1.283 ! Near Maximum !
ADI AS 25 BP 106.0 28.4 1.84 1727 100.0 39490 3401 1.598
IMR TrailBoss 106.0 28.4 1.84 1727 100.0 39490 3401 1.598
V1734 7-multiperf ,test only 106.0 82.4 5.34 1567 29.3 17132 4239 2.114
 
Fotis, what exactly is the 105% ratio. And on a side note, I've found the velocity estimated by Quick load is more accurate than most of the manuals.
 
Bruce,

Most stick powders can be loaded to as high a load ratio as 114% of case capacity. A 106% load ratio is only mildly compressed, and for many powders, it would not even appear compressed. Spherical powders are less compressable, however, so Fotis has set his parameters to allow for safe loading without severe compression.
 
I guess I'm just a tad confused about that as I just figured 100% meant the case was full. Does 100% percent mean useable space not total case capacity?
 
I had a 8mm Rem mag but I used the 200 gr. AccuBond. I was interested in bettering the 300 Weatherby/Win by a bit without going all the way to 338 caliber.
I realy liked the round but got weak and sold it one day to get some other rifle.
My load was: 200 gr Nosler A/B CCI 250 primer RP brass and 87grs. of RL25 with and OAL of 3.6" It gave me a 3084 fps. avg. with individual Vels. of 3083, 3080 and 3088.
Good Luck
Greg
 
Greg Nolan":1w7mtirb said:
I had a 8mm Rem mag but I used the 200 gr. AccuBond. I was interested in bettering the 300 Weatherby/Win by a bit without going all the way to 338 caliber.
I realy liked the round but got weak and sold it one day to get some other rifle.
My load was: 200 gr Nosler A/B CCI 250 primer RP brass and 87grs. of RL25 with and OAL of 3.6" It gave me a 3084 fps. avg. with individual Vels. of 3083, 3080 and 3088.
Good Luck
Greg

Thanks Greg I have some 200 accubonds and will try that load.

I tried up to 81 gr of RL-22 with the 220 Hornadys yesterday and got a super 100 yard group and a velocity of 2983 with 81 gr's but it seemed a little warm in my rifle, shells did not extract as easy as I like and after full length resizing total case stretch with new brass was .015, .010 after the firing.

Bill
 
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