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40-65 Win & 370 gr smokeless load help (Read 9427 times)

djp45 Newbie Offline Posts: 1 Location: Westen part of the state Joined: Sep 16^th, 2014	40-65 Win & 370 gr smokeless load help Sep 17^th, 2014 at 2:08pm	Print Post
	New to the site & would like some help with smokeless powder loads. I have a 1875 C sharps and a Saeco #640 370 gr mold, and sizing to .408". I any member has any load data or can tell me where to get find it would really help me out. I have found some data for 5744 but, that's about it. Been looking here for a while, and it's a great site for SSR. Thank you


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Kurt_701 Frequent Elocutionist Offline Posts: 1050 Location: Missouri Joined: May 20^th, 2004	Re: 40-65 Win & 370 gr smokeless load help Reply #1 - Sep 17^th, 2014 at 2:22pm	Print Post
	I am shooting RCBS 40cal 312gr bullets in a Highwall 4065. I have been using a starting load of 4227-20 grs. The primers on the loads that I used did not indicate any pressure problems. Hodgdon's does offer some data for Hodgdon and IMR powders. Watch your pressure!! (You need to *Login* or *Register* to view media files and links)

	M-14 3rd Battalion 27th Marines RVN 68'69'
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SSShooter Frequent Elocutionist Offline Posts: 2942 Location: Southern NJ Joined: Aug 1^st, 2010	Re: 40-65 Win & 370 gr smokeless load help Reply #2 - Sep 17^th, 2014 at 4:55pm	Print Post
	At 200yd last Saturday I shot a 99-1X with the Saeco #640 being pushed by 54gr of 2F Swiss in my original Hepburn with a 40-65 GM 14.5" twist barrel. Should have been a 100, but I let one go with a bad hold and got the 9. Based on the targets above, you might want to stay with black.

	Glenn - Stevens 044 1/2, Bartlein SS 5R barrel in 22LR
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wcf3840 Senior Forum Member Offline ASSRA Life #299 Posts: 383 Location: Palatine Joined: May 28^th, 2007	Re: 40-65 Win & 370 gr smokeless load help Reply #3 - Sep 17^th, 2014 at 7:19pm	Print Post
	I've used 21.7 grs of RL7 or 22 grs of 4759 with good results.


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march41 Junior Member Offline Posts: 89 Location: Reading,PA19606 Joined: Jan 19^th, 2013	Re: 40-65 Win & 370 gr smokeless load help Reply #4 - Sep 17^th, 2014 at 8:30pm	Print Post
	Try looking at lymans loading specs.Try SR4759.Try starting with 19gr-with oversize walters wad under the bullet( NOT ON THE POWDER )and mag LR primer.


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Kurt_701 Frequent Elocutionist Offline Posts: 1050 Location: Missouri Joined: May 20^th, 2004	Re: 40-65 Win & 370 gr smokeless load help Reply #5 - Sep 17^th, 2014 at 9:59pm	Print Post
	The targets posted are not great but are the results of a first attempt to work up a smokeless load for 4065. I too, generally shoot Blk Pwdr in a 4065. However , that was not the gentleman's question. Sorry I intruded. Kurt

	M-14 3rd Battalion 27th Marines RVN 68'69'
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SSShooter Frequent Elocutionist Offline Posts: 2942 Location: Southern NJ Joined: Aug 1^st, 2010	Re: 40-65 Win & 370 gr smokeless load help Reply #6 - Sep 18^th, 2014 at 7:54am	Print Post
	Kurt_701 wrote on Sep 17^th, 2014 at 9:59pm: The targets posted are not great but are the results of a first attempt to work up a smokeless load for 4065. I too, generally shoot Blk Pwdr in a 4065. However , that was not the gentleman's question. Sorry I intruded. Kurt Actually, your targets are fine. Thought the holes along the top edge were bullet holes, but see they are not. The problem I've found with the loads from "Cartridges of the World" is that they are generally based on such light bullets. The heaviest for the 40-65 is 300gr w/24gr of 5744. The most interesting 40-65 load is the 260gr bullet with 44gr of IMR 3031 giving 1720fps MV. That would come close to filling the case, which is a good thing. Might cut that back a few grains with the 370gr bullet. The only 370gr bullet I could find was for the 40-90 Sharps BN, which is 28gr of IMR 4198.

	Glenn - Stevens 044 1/2, Bartlein SS 5R barrel in 22LR
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westerner Frequent Elocutionist Offline deleted posts and threads record holder. Posts: 12267 Location: Why, out West of course Joined: May 29^th, 2006	Re: 40-65 Win & 370 gr smokeless load help Reply #7 - Sep 18^th, 2014 at 8:17am	Print Post
	Twenty grains IMR 4227 and breech seated bullets will stay in the twenty five ring at two hundred yards when shot from one of my 40-65s. Hard bore rider bullet with tapered grease groove portion. Never tried them fixed. Joe.

	A blind squirrel runs into a tree every once in a while.
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ClaMar Full Member Offline Posts: 141 Location: Texas Joined: Jul 23^rd, 2013	Re: 40-65 Win & 370 gr smokeless load help Reply #8 - Sep 20^th, 2014 at 8:59am	Print Post
	I've had very good results from 5744. I wouldn't waste the time trying to develop a load for 4759 because it's no longer available, unless you have a good supply. Clarence


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ireload2 Full Member Offline Posts: 169 Joined: Jul 9^th, 2009	Re: 40-65 Win & 370 gr smokeless load help Reply #9 - Oct 1^st, 2014 at 8:24pm	Print Post
	Lyman once sold cast bullets for BPCR in 45 and 40 cal. I have attached the Lyman data that came from with the 40 cal bullets. I used 400 grn Snover bullets from 3 sources with this data for several powders and never got much accuracy with those bullets. I interpolated this data up for 325 grn bullets and got spectacular accuracy. The 325 grain bullet was an NEI gas check bullet intended for the .405 Win but it came out small for the .405 at .410. These were gas checked with Lyman 41 cal checks and lubed in a .410 die. I had unburned powder with 21 grains of SR4759. I upped the loads to 22 and 23 grains and got better accuracy and the unburned grains disappeared. SR4759 is also excellent for me with the 45-70 at similar velocities. I had 5 lbs when it was announced that SR4759 was being discontinued this year. I bought an 8lb jug that I hope will last me. If I run out I will at least know I had a lot of fun at 23 grains per shot on avg.
	« Last Edit: Oct 1^st, 2014 at 8:58pm by ireload2 »

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sportslube Oldtimer Offline Posts: 594 Location: Eau Claire, wi Joined: May 13^th, 2008	Re: 40-65 Win & 370 gr smokeless load help Reply #10 - Oct 1^st, 2014 at 8:47pm	Print Post
	In my Providence Peabody. I use the Snover 410 gr. tapered bullet with 29.5 grains of 3031, Walters wad under the bullet. sportslube


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.22-5-40 Oldtimer Offline Posts: 826 Joined: Feb 13^th, 2010	Re: 40-65 Win & 370 gr smokeless load help Reply #11 - Oct 2^nd, 2014 at 1:09am	Print Post
	I have an Axtell No. 1 .40-70 straight (2 1/2")..which is very close to C.C. of the .40-65. As a matter of fact, I used that very Lyman load chart when I first started loading for this rifle. I have been using a Fred Leeth nose-pour copy of the Ideal 300 gr. 405 Win. bullet..(the original Ideal shot so nice, I had Fred make a mould). I have had very good accuracy of around an inch at 100 yds. using H4895 & Varget. I found charges a few grains under the suggested start loads were most accurate. I use .032" veg. fibre wad under the bullet.


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SSShooter Frequent Elocutionist Offline Posts: 2942 Location: Southern NJ Joined: Aug 1^st, 2010	Re: 40-65 Win & 370 gr smokeless load help Reply #12 - Oct 3^rd, 2014 at 10:20am	Print Post
	Case capacity for the 40-65WCF is listed as 68.52 and the 40-70SS (40-65SS for those who wish to be historically correct) is 72.98, or about 3.5gr of H20 larger. In practical terms, likely no difference.

	Glenn - Stevens 044 1/2, Bartlein SS 5R barrel in 22LR
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JSB30 Senior Forum Member Offline Posts: 407 Location: Missouri Joined: Apr 30^th, 2011	Re: 40-65 Win & 370 gr smokeless load help Reply #13 - Oct 4^th, 2014 at 9:29pm	Print Post
	Playing with my 40-70 SS today. 23 gr 4759 and Snover 400 gr at 1420 fps.


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Bullshot Junior Member Offline Posts: 78 Location: Ct Joined: Mar 1^st, 2008	Re: 40-65 Win & 370 gr smokeless load help Reply #14 - Oct 11^th, 2014 at 3:16pm	Print Post
	Shiloh Sharps. Saeco 640 sized .409, nra 50/50 lube,fixed, 30gr IMR4895. Will shoot 1in or less at 100yds depending on me.

	Bob NRA Life Benefactor
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