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Post by Richard on Apr 6, 2010 16:02:01 GMT -5
Just a shorter report as I had to do some testing with my 600 yd. bench rifle. Targets #1, 2, 3 and 4 were all shot using a newer bumped up duplex that did not perform, velocity wise, as I had anticipated! While accuracy was not bad (then again, is anything really bad in the .45 ) I thought I would get more speed than I did. I also got my share of ups and downs in velocity. By and large this load want to shoot 200 gr. saboted bullets around 2890 fps. The load is 5/67------N-110/N-120. On target #1 I think a blew a sabot due to the velocity drop and the built fairly far out of the group. Maybe not blown, but possibly stressed? The fourth target was sabot less and exhibited three excellent shots however they were 1, 3 and 5 for .534" and the velocity on those shots went from 2674 to 2756? Lastly group five was suggested by Herman. Needless to say, I will not be re-visiting that one anytime soon ;D (hence only two shots) Richard
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Post by deadon on Apr 6, 2010 16:30:45 GMT -5
Richard, really like groups 2 and 3 , being a hunter first I would see if I could repeat those.Wish you luck on your upcoming shoot.
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Post by ET on Apr 7, 2010 6:18:40 GMT -5
Richard
What I find interesting is that in group 2 your 1st shot is the furthest out and in group 3 your 5th shot is the furthest out from your group. Also maximum horizontal spread appears to be only 1”.
Good luck with your upcoming 600yd match.
Ed
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Post by edge on Apr 7, 2010 8:10:40 GMT -5
I wonder if temperature may be a factor on your velocities??
You certainly have shot higher velocities with lower powder charges using the same powders....I would have thought that this load should be closing in on the 3k mark!
2\3\2010 4 200XTP HarvesterBlue 5\66 N-110 N120 2966
1\26\2010 2 200SST HarvesterBlue 6\65 N-110 N-120 2959
edge.
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Post by Richard on Apr 7, 2010 20:11:02 GMT -5
And yet, you would think warmer temperatures would produce higher velocities? No? But really, I don't think I am dealing with any big spreads in temperatures? We shoot from inside a heated room. I use the cool rod any time I feel the barrel getting slightly warm. This occurs only after two shots where upon the cool rod is inserted. Actually After the first two shots of the day, I used the rod every shot. Loading pressures seems the same. I mic'd all three saboted bullets and both the XTP and SST are right at .400". The Barnes is maybe .3998 to 9! This same difference appears when mic'd across the sabots. Edge........one of the members asked me If I had shot 78 gr. of H-4198 with a 275 gr. Parker? Obviously, I had not and to me it sounds way out of line? He said a friend was shooting it out of one of the custom ML's? I have never shot more than 66 gr. with a 250 XTP sabot less. Thoughts? Richard
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Post by Dave W on Apr 7, 2010 21:50:30 GMT -5
That load is from Richards Customs, around 2900-3000fps.
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Post by wilmsmeyer on Apr 8, 2010 5:08:49 GMT -5
Richard,
I sort of remember that claim and wondered if it was a typo or if the poster was shooting 50 cal?? If it was 50 cal with sabotsI would say he was fine.
As you know, I shot 80 gr H4198 with 250's 100's of times as well as a 5 shot group with 76 gr H4198 and 300 SST's by accident cause I grabbed the wrong powder vials. No problems, blown sabots and very acceptable groups.
78 gr and a 275 bullet would be right in my wheelhouse with my 50's....except that the Parker is a mushy varmint bullet. However, I digress.
If this guy was shooting this in a sabotless .45 I would think not only is this a little hot, but he has NO room for a mistake. From my speer manual, I make a slight correlation by looking at .458 Win mag data where the lightest bullet shown is a 350 gr bullet and the max amount of H4198 is 71 gr for about 2500 fps. This cartridge is rated at 53,000 psi. Drop 75 gr of weight and add 7 gr of powder and the load would probably be close in pressure and the 2900-3000 fps Dave mentioned above is plausable.
That would be a slammer of a load....and as I digress again.....a load that I would want with a tougher bullet
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Post by edge on Apr 8, 2010 7:41:02 GMT -5
I suspect that the Richards Custom load is at least in the mid 50Kpsi range. Quickload predicts around 59 kpsi.
After consideration I would not like it in a Savage configuration, but the tube that Richards Custom uses it is probably not too hot.
edge.
PS I did get a PM from a member asking about that load. He was using a Rem 700 action with a Palma contoured barrel which is much more substantial than a Savage barrel! Approx. 1 1/4 diameter for 5 inches and then tapered to about .925Dia. 7 1/2 inches from the breech.
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Post by Dave W on Apr 8, 2010 14:28:45 GMT -5
Sabotless .45 Wilms.
I think the plug Richards uses is also smaller in diameter in the threads than the Savage plug, adding a little more material to the barrel for strength.
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Post by smokeeter on Apr 8, 2010 15:18:56 GMT -5
I thought I read somewhere that Richards plug is a knight plug, not sure.
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Post by Jon on Apr 8, 2010 16:26:26 GMT -5
Smokeeter. I bought his dvd and he is using a knight and nipple. The plug does look up to the task. If anyone is interested I can view the tape again it gives the part no. for both? Jon
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Deleted Member
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Post by Deleted on Apr 8, 2010 18:36:03 GMT -5
dont know about the Richards customs loads but the swinglock my friend shoots is burning 82.5 grns of 4198 with the 275 parker naked. it makes for 3100 fps + and it bites on both ends,
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Post by Richard on Apr 8, 2010 20:06:00 GMT -5
Hillbill........If I am not mistaken, Swinglock puts a chamber in their rifles no? Anyway, I'll stick with my duplex loads. Richard
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Post by hjllbill on Apr 9, 2010 20:29:57 GMT -5
Richard, Tom uses chambers on the smaller cal guns but the 45 is non chambered, his breech plug has about twice the threads of a savage plug so it is a very strong design. his guns are very impressive builds, among the best workmanship i have seen in any firearm........If he & I both live long enough maybe I can own one some day....Bill
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