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Post by bike4500 on Nov 15, 2015 20:56:17 GMT -5
Hi I have a cva scout 45/70 that i had slufoot covert for me. The gun shoots all over the place. I am using 4198 at 53,54,56 grains. I gun does have a loose bore where I have to put a heavy curl on the 200 sst, 195 barns with the light blue sabot. Any help would be awesome before i get rid of the gun. I am new to sml guns. Thanks
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Post by Deleted on Nov 15, 2015 23:09:34 GMT -5
Are you game for sabotless loads?
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Post by bike4500 on Nov 16, 2015 6:01:38 GMT -5
i sure would be. I'm pretty sure i could get one down without sizing it. lol
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Post by sw on Nov 16, 2015 7:15:01 GMT -5
Did you chronograph the loads? I think your problem comes from inadequate obturation. You're using a relatively slow powder, not a lot of it, a loose load, and actually, the expected is happening. You have 2 choices, IMO : 1) consider going sabotless, or 2) knurling fairly aggressively and use a faster single powder or aggressive duplex.
For sabotless, the cheapest test would be 250 g Hornady XTPs; and for saboted, try 33-35g of VV-110, 4759, or just for testing 5744 or a proven winner 10/50 of 4759, VV-110/5744 under 50g of H-4198. I'll let others recommend loads for sabotless. If you have some 250SSTs/Shockwaves, they'd work the same as the XTPs and would end up being possible candidates for hunting. Use a hot primer: Fed209A, CCIm,Win209 - all are relatively hot. I prefer the last 2. Others will help with sabotless loads.
PS Many of us use a wool wad (order from Luke -Arrowhead- at top of page) or vege wads (0.060") under our sabots and sabotless bullets, respectively. The wool wad protects the sabot base and the vege wad seems to help obturation and reduce std devs.
I think your gun will work. I have a grossly oversized 45 PacNor (a 250/300 SST sails down the barrel). Serious knurling, vege wads aggressive duplex (more primer powder than normal) will make it really shoot. It will shoot 200SSTs with aggressive knurling and MMP sabots with vege wad and wool wad under and 35-37g of VV-110. It won't shoot Barnes because they're harder to obturate.
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Post by rangeball on Nov 16, 2015 9:43:19 GMT -5
In addition to all the good stuff sw said, are you allowing adequate cool down time between shots?
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Post by bestill on Nov 16, 2015 10:11:14 GMT -5
How well does gun lock up . Is there any movement in hinge pin.
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Post by bike4500 on Nov 16, 2015 20:22:23 GMT -5
the gun locks up very good. I would wait like maybe 10minutes and the barrel would be cool to the touch. Tonight i could not get any of my 45 cal bullets down the barrel maybe if i hammered them down. Should i be able to get a 45cal bullet down the barrel? Maybe i will try more booster and less 4198
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Post by kennacl55 on Nov 16, 2015 21:06:53 GMT -5
What all powders do you have? I would try some duplex loads. If you could list the powders you have on hand im sure someone on this board can get you straightend out with a good accurate load. If you have any IMR SR 4759 I would try 10grs 4759 as a booster with 50gr 4198 as a main powder along with the 200gr sst and a smooth blue sabot.
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Post by Deleted on Nov 16, 2015 21:25:57 GMT -5
the gun locks up very good. I would wait like maybe 10minutes and the barrel would be cool to the touch. Tonight i could not get any of my 45 cal bullets down the barrel maybe if i hammered them down. Should i be able to get a 45cal bullet down the barrel? Maybe i will try more booster and less 4198 You shouldn't have to hammer the bullets down. Do you have a bullet sizer? I size all my bullets to go down with one hand. I sized my boys bullets for his gun where you can push the complete bullet into barrel with finger then rest of the way with ram rod. His bullets are sized a little loose-r than I do my own but I don't want him to struggle reloading in the field hunting. His gun stacks them on top of each other at 100 yards. His gun is very similar to your gun. Here are a few things to look at, check your forearm make sure your stock isn't hitting the barrel, if it is sand it down allot because it will flex and hit it during range sessions. Another thing if you have blown sabots from before you need to do a deep clean to get residue out. The plastic will stick to barrel causing issues. How stiff is your trigger? If it's pretty hard you either need to adjust it or do a treatment that I recommend that will smooth it out and loosing pull quite a bit. For your trigger get some rem oil and boil some water. Run the boiling water through your trigger until your trigger is very hot. Soak the trigger with rem oil. Repeat progress a couple times and during the process dry fire the trigger several times. Once your finished doing this give it some time to let all the rem oil work itself out so your not getting spray in your face while shooting. Over night should work. One guy did my treatment and it loosened trigger pull about 3lbs. I had to do this treatment in military when I was shooting for governors-ten in the national guard. They wouldn't let us adjust the triggers. Rambler did this to his gun and helped him out allot also. I'd get some jb Bore paste and use it to clean your gun (follow the directions) Send me a pm and I can send you some sized down 250 FTX you can try. Good luck. |
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Post by rambler on Nov 16, 2015 22:27:30 GMT -5
the gun locks up very good. I would wait like maybe 10minutes and the barrel would be cool to the touch. Tonight i could not get any of my 45 cal bullets down the barrel maybe if i hammered them down. Should i be able to get a 45cal bullet down the barrel? Maybe i will try more booster and less 4198 You shouldn't have to hammer the bullets down. Do you have a bullet sizer? I size all my bullets to go down with one hand. I sized my boys bullets for his gun where you can push the complete bullet into barrel with finger then rest of the way with ram rod. His bullets are sized a little loose-r than I do my own but I don't want him to struggle reloading in the field hunting. His gun stacks them on top of each other at 100 yards. His gun is very similar to your gun. Here are a few things to look at, check your forearm make sure your stock isn't hitting the barrel, if it is sand it down allot because it will flex and hit it during range sessions. Another thing if you have blown sabots from before you need to do a deep clean to get residue out. The plastic will stick to barrel causing issues. How stiff is your trigger? If it's pretty hard you either need to adjust it or do a treatment that I recommend that will smooth it out and loosing pull quite a bit. For your trigger get some rem oil and boil some water. Run the boiling water through your trigger until your trigger is very hot. Soak the trigger with rem oil. Repeat progress a couple times and during the process dry fire the trigger several times. Once your finished doing this give it some time to let all the rem oil work itself out so your not getting spray in your face while shooting. Over night should work. One guy did my treatment and it loosened trigger pull about 3lbs. I had to do this treatment in military when I was shooting for governors-ten in the national guard. They wouldn't let us adjust the triggers. Rambler did this to his gun and helped him out allot also. I'd get some jb Bore paste and use it to clean your gun (follow the directions) Send me a pm and I can send you some sized down 250 FTX you can try. Good luck. It works. |
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Post by bike4500 on Nov 17, 2015 5:53:33 GMT -5
Thanks alot riverrat. I will try to do a real good cleaning tonight and the trigger is not to good. I do not have a way to size the bullets. Thanks for the bullet offer I might take you up on it.
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Post by sw on Nov 17, 2015 8:11:34 GMT -5
Thank you riverrat. Helpful info.
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Post by DHinMN on Nov 18, 2015 13:26:11 GMT -5
bike4500, What is the barrel length on your Scout conversion. I notice in the CVA Scout has a shorter barrel in most calibers but not sure about the 45-70. Short barrels may make a difference in choice of powder. Keep us posted on your progress. The CVA Scout 45-70 is one I was thinking about converting. Anxious to hear how you come out. DH
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Post by bike4500 on Nov 18, 2015 13:40:52 GMT -5
It does have a pretty short barrel. I just cleaned the barrel real good and it seems to have a loose spot in the bore where the pressure on the rod when loading just gets lighter a couple inches from hitting the load.
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Post by bike4500 on Nov 21, 2015 13:15:06 GMT -5
Well i think the smokeless shooting is more than i have time for right now. The gun and all the powder is going up for sale or trade for a nice regular muzzleloader.
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