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Post by dans on Dec 18, 2021 13:01:08 GMT -5
20 inch barrel converted 45-70 209 breech plug. 1-20 twist. What would the ideal saboted bullet weight? Have shot numerous combinations of <200 gr. Bullets with n110 ans similar powders. It just shoots patterns with lighter bullets.
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Post by smokepolehall on Dec 18, 2021 15:50:00 GMT -5
I assume you have cleaned carbon out, is it a bushing or vent liner. Have you knurled bullets to grip sabots ? Veggie wad or no wad or wool wad ? So far with my NEF its not doing groups using veggie wads. Its more like extremely tight buckshot at 25 yds. So far the best group i have ever got was 2.250 " at a 100 yds. I have only shot 200 gr bullets from sabots. I have tried 230 n 250 sabot-less at 100 yds n they are buckshot groups. I am thinking of trying 225 gr Fury .40 cal with sabot
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Post by booner22 on Dec 18, 2021 15:50:38 GMT -5
20 inch barrel converted 45-70 209 breech plug. 1-20 twist. What would the ideal saboted bullet weight? Have shot numerous combinations of <200 gr. Bullets with n110 ans similar powders. It just shoots patterns with lighter bullets. Seems like everything I have seen is 195 or 200gr in a harvester light blue. |
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Post by hunter on Dec 18, 2021 16:38:53 GMT -5
Have you recovered any sabots, how do they look
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Post by dans on Dec 22, 2021 7:21:16 GMT -5
Sabots look good. I have tried 195 barnes, 200 gr. XTP, 200 GR.
SHOCKWAVE, With and w/o veg wads and wool wads. I shot 30 to 35 gr. of n110, 4759, and 5744 CCI 209m primer. I have also shot 55 to 58 grains I-4198 with these bullets. I have not knurled or smooth sized any bullets. I have cleaned the barrel and breech plug. I had hoped to shoot lighter bullets and amounts of powder for a light recoiling load.
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Post by dans on Dec 22, 2021 7:23:22 GMT -5
Bushing plug.
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Post by peteo on Dec 22, 2021 19:00:45 GMT -5
20 inch barrel. Do you have a barrel drop from that cut?
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Post by smokepolehall on Dec 22, 2021 23:05:56 GMT -5
I have shot 17- 19 grs of B-dot using sabot w wad light recoil, groups 2-2 1/4 at hundred yards
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Post by dans on Dec 23, 2021 8:31:37 GMT -5
Yes I have the barrel drop. I will try the blue dot load. I realize I can get a full bore bullet sizer made from the barrel drop. I haven't had any experience with non saboted bullets either full sized or smooth sized. I prefer Barnes bullets. So do they have much spring back?
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Post by smokepolehall on Dec 23, 2021 8:45:05 GMT -5
Usually the Barnes are dead on or a tad less. I am also fixing to test some of the xpb bullets in .451 200 gr. .451 225 gr n .451 250 gr. Will test in Jan. or Feb.
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Post by dans on Dec 23, 2021 18:11:44 GMT -5
Ok thanks.
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Post by billyboy on Dec 27, 2021 12:49:39 GMT -5
Knurling will probably give you the most benefit. I also anneal the 195 Gr Barnes to make them Softer for better obturation inside the sabot.
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Post by dans on Dec 29, 2021 18:32:08 GMT -5
Will try annealing and knurled to see if improvement.
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Post by lbahunter on Jan 3, 2022 12:38:57 GMT -5
Usually the Barnes are dead on or a tad less. I am also fixing to test some of the xpb bullets in .451 200 gr. .451 225 gr n .451 250 gr. Will test in Jan. or Feb. Barnes also has a 185 gr. It's the TAC-XP for the 45 ACP. |
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Post by lbahunter on Jan 3, 2022 12:41:01 GMT -5
20 inch barrel converted 45-70 209 breech plug. 1-20 twist. What would the ideal saboted bullet weight? Have shot numerous combinations of <200 gr. Bullets with n110 ans similar powders. It just shoots patterns with lighter bullets. Have you tried the Barnes 10mm 155gr? |
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Post by driven2tri24 on Jan 6, 2022 8:48:10 GMT -5
In my I have consistent <MOA groups in all of my conversions with the 200XTP/HSB sabot and the Slufoot load of 17gr Blue Dot. This chrono's at 1700 fps in my short barreled(16") H & R and 1800fps in my 22" H&R's. Recoil is light and knocks deer dead to 100yds nicely. For a small youngster in a blind over corn on small deer I use a 155XTP/HSB and 15gr of Blue Dot@1550fps in 16" barrel(Recoil is VERY, VERY light and it shoots <1" at 50yds.
Two other powders really shine in my conversions with both 200XTP/HSB sabot and 250XTP/Veg Wad Sabotless are:
42gr 5744 <1.5"@100yds
53gr H4198 =1 MOA
The 200XTP/HSB's clock 2265fps and the 250XTP/VW run 2050fps.
If you don't mind recoil my most accurate load is a 300XTP(non-Mag)/Wool Wad with 53gr of H4198 @ 1950fps, but I must warn you that in a 6.5# gun...It does rattle your teeth, so I haven't used it in last 5 years...
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Post by driven2tri24 on Jan 6, 2022 9:11:40 GMT -5
Another piece of advice...The thin jacketed bullets with completely flat heels(like the XTP's) shoot best out of my bores(Sabot-less and Saboted). I have yet to get any thicker jacketed rounded heel bullet(SST/FTX) or Barnes with it's slightly smaller diameter to ever shoot under 2 MOA. Most have key-holed or struggle to group under 4". This is after numerous attempts at:
knurling, high pressure loads and tight fitting sabots. This I believe is the nature of H&R bores having a slight taper toward muzzle and probably won't pertain to your CVA. The only thing I can speculate on is that the Barnes 195BX and the SST's will most likely not group AS well as the XTP's unless you have a consistent bore on the Tight side, such as a Pacnor, McGowen or similar. IIRC, I believe many said the CVA bores were fairly true, just a bit on the loose side and I personally would look at the Fury or other thin jacketed Premiums(if you want better BC's than XTP's etc)rather than the Barnes or SST's. Just my .02
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Post by lbahunter on Jan 6, 2022 15:11:49 GMT -5
In my CVA Scout, I have shot a resized .410 Barnes 180gr XPB in a light blue sabot with a wad. Either N110 (what I use) or Bluedot will work. If using DI, work up carefully with the faster powders. Keep check on powder column height.
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