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Post by farmerboy78 on Oct 11, 2022 17:45:35 GMT -5
Hey guys I'm new to this site and to sml in general. I've been running bh209 in a knight disc elite with a lehigh conversion. But I have a hankins Remington prefit on the way for this new journey. I have 8lbs of imr 4198 on its way and I am looking at the pittman 275 accumax. So I have all of the components needed to size the bullets and reprime the modules. But I have a few questions... will I need a wad with this setup? How do I know where the bullet is sized appropriately? What is a common size being used in the 45cal barrels? I have seen the recommended load for the barrel, but when I'm checking different powder loads how much of a change should I use... 0.2gr, 0.3gr, 0.5gr, 1.0gr, etc? Any and all help would be greatly appreciated.
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Post by hillbill on Oct 11, 2022 20:09:38 GMT -5
I don't own a prefit but I can tell you how to size your bullets
1.If you have a new die first clean the oil out of it and get it set up in the press and ready to size bullets. 2.remove your breechplug and your brake if it has one 3.you will likely need to tighten the nut on the die at least half a turn to get started 4.run your bullet thru the die spot checking on the barrel crown for fit 5.keep tightening down you die until the bullet starts to go in the barrel 6.at this point run your bullet thru the die 3 times then recheck 7.fine tune the die until you can start the bullet in the crown with your thumb and index finger without much pressure. 8.recheck on a fresh bullet after it has been sent thru 3 times, you want to end up with two finger pressure on the ramrod on a clean barrel.
this will get you really close to where you need to be after the barrel is fouled. As far as the load goes with IMR-4198 you could start at 60 grains, I will let someone else tell you where to stop. you can do 1 grain increments when load testing
This is how I do a test for a specific gun I do a 2 shot ladder test first zero your gun and make sure the bullet fit is good, you should not need a wad with 275s but you can always try them to see what shoots best? draw a horizontal line on your target with small verticals about every 3" start at a given charge weight and after the barrel is fouled shoot 2 shot groups at each cross moving up 1 grain at a time, you will see the groups either open up or close in as you go up in charge weight, when you reach a charge you are comfortable with as max look at your groups and you will find a point that it shoots in one hole or close to it, when you find it you can go up or down in 1/2 grain increments to fine tune.
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Post by farmerboy78 on Oct 12, 2022 7:27:05 GMT -5
Thanks hillbill!
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Post by farmerboy78 on Oct 15, 2022 13:19:50 GMT -5
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dsotm
New Member
Posts: 1
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Post by dsotm on Oct 15, 2022 13:33:24 GMT -5
Any idea how much it weighs? Looking at putting something similar together soon.
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Post by farmerboy78 on Oct 15, 2022 18:31:36 GMT -5
It is 15lbs as it sits
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Post by farmerboy78 on Oct 17, 2022 19:10:41 GMT -5
So I fired it a small amount today to zero and check a few quick groups, looks like 66gr 4198 is a quick go to for hunting and will test more soon.
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Post by farmerboy78 on Oct 18, 2022 17:50:41 GMT -5
Ran to the range after work get some drop data, only went to 300yds and it was spot on at 1.3mils. That will work for now
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Post by farmerboy78 on Oct 21, 2022 17:53:04 GMT -5
So I didn't hunt this evening, so I fired a few more shots to check above 66gr imr4198. I tried 67 and 68gr of which both opened up more and more... so 66gr is definitely the charge I will be using going forward... I need to figure out how to get some more weight on Ole girl to make her a little easier to shoot.
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Post by 03mossy on Oct 21, 2022 19:04:59 GMT -5
I have one of these barrels also and was told 65 grains of H4198 was the max load with a 275 grain bullet?
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Post by farmerboy78 on Oct 21, 2022 22:12:00 GMT -5
Yes sir, that's what I was told as well... but, I've also spoken to multiple others that gave me other data that I was testing. But, 66gr of imr 4198 gave me the best results.
Also, does anyone out there have a recommended load using a 250gr? I have some on order to try out. Hoping to lessen recoil and get similar results
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Post by jeepeater on Oct 22, 2022 0:17:54 GMT -5
Yes sir, that's what I was told as well... but, I've also spoken to multiple others that gave me other data that I was testing. But, 66gr of imr 4198 gave me the best results. Also, does anyone out there have a recommended load using a 250gr? I have some on order to try out. Hoping to lessen recoil and get similar results I’ve tried 250 grain Parker BE in the CVA Scout where I usually shoot the same brand in a 275. With the same 65 grain charge of IMR 4198 I can’t tell a difference in recoil. Speed is basically the same, as is accuracy. I guess you could go up a few grains with the 250, but I don’t think you’ll gain much speed, and definitely not going to reduce recoil.
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Post by farmerboy78 on Oct 22, 2022 0:48:56 GMT -5
Well dang, I'll only go up if I can find accuracy safely. I'm curious as to how much higher than 66gr is still safe.
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Post by Deputy819 on Oct 22, 2022 2:50:56 GMT -5
Well dang, I'll only go up if I can find accuracy safely. I'm curious as to how much higher than 66gr is still safe. PM Sent
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Post by farmerboy78 on Oct 23, 2022 9:13:39 GMT -5
So I went to the range yesterday and did a bit more shooting at a further distance. I worked out to 600yds on silhouette targets to get drop and then came back to 300 and started shooting the small targets out to 500yds. These were 6" diamonds and all 3 were one shot hits!
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Post by 1coyotemaster on Nov 4, 2022 6:24:39 GMT -5
Well dang, I'll only go up if I can find accuracy safely. I'm curious as to how much higher than 66gr is still safe. If you have Ballistic AE or another program take a look at the energy levels of that 66 grain load. I think off the top of my head it has around 1600+ ft lbs. of energy at 400yds. That is about twice what I've read is required for cleanly harvesting a Whitetail. If you choose to shoot farther than this plan on spending some range time shooting in the wind to learn how much drift you'll have. Not saying it's not possible to shoot these guns at farther, but the guys that do spend lots of time shooting them. For most of us 400 is a pretty good poke at a deer and more than enough where I hunt. I'll take one hole accuracy over increased velocity any day.
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Post by sew on Nov 4, 2022 7:10:07 GMT -5
Since you live in Arkansas and can legally hunt with a 40 and apparently have some recoil concern but still want fairly long range capability, I recommend a 40 down the road. I am a hunter and not a benchrest shooter. I’ve been shooting quite a bit over the past 2 weeks and am still amazed at what I’m getting off a folding table in agri fields.
With my 18# total 40 26”, MB, DI, 275 AM, 6x24 S3, I’m staying at 1.2” 3-shot groups at 300 yards (2,860’/sec) Smooth sized. I expect this to improve with 300AMs and full sized. With my 8#1 oz 40 Ultralite, shooting 253 Hammers, full sized (2730’/sec), ragged hole @ 100, cloverleafs @ 200 , 1 1/2” @ 300 compromised by using a 2x8 Duralyt.
With Richard’s former 45 , shooting Kyles 300 blemished Aeromax’s , similiar accuracy was obtained. For trajectory purposes, don’t rule out the Aeromaxs.
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Post by farmerboy78 on Nov 5, 2022 7:19:11 GMT -5
Well dang, I'll only go up if I can find accuracy safely. I'm curious as to how much higher than 66gr is still safe. If you have Ballistic AE or another program take a look at the energy levels of that 66 grain load. I think off the top of my head it has around 1600+ ft lbs. of energy at 400yds. That is about twice what I've read is required for cleanly harvesting a Whitetail. If you choose to shoot farther than this plan on spending some range time shooting in the wind to learn how much drift you'll have. Not saying it's not possible to shoot these guns at farther, but the guys that do spend lots of time shooting them. For most of us 400 is a pretty good poke at a deer and more than enough where I hunt. I'll take one hole accuracy over increased velocity any day. I often shoot to and past 1000yds with nearly all my rifles. I competitively shoot in fclass,.22lr fclass, and prs...so shooting at distance and in the wind isn't new to me. These bullets have about twice the drift of my other rounds. That's easy to figure out with my kestrel to 600yds. I am hitting point of aim at 300 and 400, have about a 0.5 mil drift at 500yds with a good wind...
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Post by 1coyotemaster on Nov 5, 2022 13:53:16 GMT -5
Open mouth - insert foot. LOL I should never assume just because you're a new member that you're new to shooting. Sounds like you have it well in hand. I do shoot the 65 gr. load in my Hankins prefit and couldn't be happier.
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Post by deathray on Nov 5, 2022 18:30:07 GMT -5
I’m very happy with the accuracy of my Pittmans! The Barnes TEZs are sure enough killers! I went down the exact same road as you , trying and testing every bullet I could get . 300 XTPs, 275 Pittmans and 250 TEZs are all winners . I’ve not tried the Furys, ordering some for my 50 cal this week. Good luck and have fun! Attachments:
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