ASSRA Forum - 32-20 Rifle Load Data (Smokeless)

ASSRA Forum › General › Reloading the Single Shot Rifle › 32-20 Rifle Load Data (Smokeless)

(Moderator Group: Moderator)

‹ Previous Topic | Next Topic ›

Page Index Toggle

Pages: 1

Hot Topic (More than 10 Replies)

32-20 Rifle Load Data (Smokeless) (Read 7658 times)

RoyB Oldtimer Offline Posts: 838 Location: Dartmouth, MA Joined: Mar 28^th, 2011	32-20 Rifle Load Data (Smokeless) May 8^th, 2017 at 4:57pm	Print Post
	Now that I have two 32-20 rifles in the gun cabinet, I need to find rifle loads that will work in these old rifles. Both are relined/rechambered..Zero Headspace....Winchester Low Wall and Remington Hepburn Using Lyman 115g / 20-1 alloy cast bullets I see loads that are using 2.5 as a min and 2.7 as a max load with various pistol powders. I don't own a scale that can throw such small charges to this thin level of tolerance from min to max. And I have five powder measures! But I see a number of loads using rifle powders that are offering much more variance...And much more case filling RL7 Min 12.4 - Max 15.5 6,500 -16,000 CUP IMR-4198 Min 10 - Max 12.4 8900-15,300 CUP IMR-4227 Min 7.8 - Max 9.7 11,400-15,800 CUP Would you suggest these starting loads are safe in these rifles? I will be shooting some FFFg also, but I want a few smokeless loads to try also. Any advise appreciated....

	Roy B Dartmouth, MA (You need to *Login* or *Register* to view media files and links)
	WWW IP Logged

jy3855 Senior Forum Member Offline Posts: 368 Location: California Joined: Jul 13^th, 2015	Re: 32-20 Rifle Load Data (Smokeless) Reply #1 - May 8^th, 2017 at 6:27pm	Print Post
	It looks like you are looking at the data in Lyman's Cast Bullet Handbook 4th Edition. My copy shows pressures for the max loads in the 16,000 CUP area. These loads should be fine in a Low Wall in good condition. They don't even start to challenge the strength of a Hepburn in good shape, though I myself wouldn't take that as license to experiment in uncharted territory with a Hepburn.


	IP Logged

JCHannum Senior Forum Member Offline Posts: 435 Location: Toledo Joined: Aug 8^th, 2007	Re: 32-20 Rifle Load Data (Smokeless) Reply #2 - May 8^th, 2017 at 7:57pm	Print Post
	Most load data for the 32-20 is very conservative as SAAMI pressures are low to provide loads safe for older revolvers. Older manuals will give a bit higher loadings, but still on the conservative side. Take a look at pressures given for the 25-20 in the same #4 cast bullet manual, they are much higher for what is essentially a comparable cartridge.

	Jim H.
	IP Logged

JLouis Frequent Elocutionist Offline Posts: 10625 Joined: Apr 8^th, 2009	Re: 32-20 Rifle Load Data (Smokeless) Reply #3 - May 8^th, 2017 at 7:59pm	Print Post
	Sort of off topic but JY came down to our Regional Match this past weekend just to watch and one would be hard pressed to find a more like able and friendy gentleman to be around. It was about a two and half hour drive one way and it is all of our hopes that he will soon become a regular part of our group with his CPA 32-40. Thank you so very much for coming JY the pleasure of you being there was all ours and we cannot wait for you to start shooting with us all. Yours Sincerely John Louis

	" It Is Better To Now Have Been A Has Been Than A Never Was Or A Wanna Be "
	IP Logged

marlinguy Frequent Elocutionist Offline Ballards may be weaker, but they sure are neater! Posts: 18103 Location: Oregon Joined: Feb 2^nd, 2009	Re: 32-20 Rifle Load Data (Smokeless) Reply #4 - May 8^th, 2017 at 8:24pm	Print Post
	I would agree also John. JY is a great guy, and would be welcome anywhere he goes. Just a down to earth good guy.

	(You need to *Login* or *Register* to view media files and links)
	IP Logged

Deadeye Bly Frequent Elocutionist Offline Posts: 1146 Location: Stephens City Joined: Feb 25^th, 2011	Re: 32-20 Rifle Load Data (Smokeless) Reply #5 - May 8^th, 2017 at 8:29pm	Print Post
	I've had good accuracy from 4.5 grains of unique and 12.5 grains of 1680. The 1680 meters well and fills the case better than unique but it would still be possible to overcharge it easily. I've got RX-7, 4198 and 4227 but I haven't tried it. I will just to see how it shoots but I haven't had time to work with it.


	IP Logged

beltfed Frequent Elocutionist Offline Posts: 1827 Location: Central Wi Joined: Dec 20^th, 2007	Re: 32-20 Rifle Load Data (Smokeless) Reply #6 - May 8^th, 2017 at 11:29pm	Print Post
	I have seen a friend's CPA 32-20 using 4227 do very well. beltfed/arnie


	IP Logged

jy3855 Senior Forum Member Offline Posts: 368 Location: California Joined: Jul 13^th, 2015	Re: 32-20 Rifle Load Data (Smokeless) Reply #7 - May 9^th, 2017 at 9:42am	Print Post
	John and Vall, Thank you for the kind words. Thank you to to John, Jerry, and Terry for inviting me down. It was a day well spent in enjoyable company, and a learning experience for me. I took the chance to talk to Jerry Cleave and order a de/re capper from him. Watching everyone shoot such small groups at 200 yards provided the impetus for me to get my CPA's wood finished and start on the road of gathering the gear I'll need to try to do likewise! I hope to make it back as often as I can get away for your monthly shoots. Thanks again.


	IP Logged

Wincacher Participating Member Offline Posts: 48 Location: New Mexico Joined: Feb 8^th, 2016	Re: 32-20 Rifle Load Data (Smokeless) Reply #8 - May 9^th, 2017 at 11:04am	Print Post
	Deadeye Bly wrote on May 8^th, 2017 at 8:29pm: I've had good accuracy from 4.5 grains of unique and 12.5 grains of 1680. The 1680 meters well and fills the case better than unique but it would still be possible to overcharge it easily. I've got RX-7, 4198 and 4227 but I haven't tried it. I will just to see how it shoots but I haven't had time to work with it. I've had excellent accuracy results with the 4.5 grains of Unique in and old Winchester Model 1873 rifle with only a fair bore. I use the old Lyman 311316 115 grain gas check bullet and am sure the gas checks are adding to the accuracy of this old rifle. The same load in a Model 1892 rifle is anemic.

	Wayne
	Facebook IP Logged

nuclearcricket Oldtimer Offline Posts: 824 Joined: Oct 15^th, 2008	Re: 32-20 Rifle Load Data (Smokeless) Reply #9 - May 9^th, 2017 at 11:59am	Print Post
	11gr of H4227 and the 311316gc bullet give excelent accruacy in my Single action. Would be a good starting point. SAm


	IP Logged

MIKE-T Oldtimer Offline [SHOOTCAST> Posts: 636 Location: Wexford Township Michigan Joined: Apr 16^th, 2004	Re: 32-20 Rifle Load Data (Smokeless) Reply #10 - May 9^th, 2017 at 2:54pm	Print Post
	Roy, Checked the data for a 32-20 92 Winchester carbine I had, my load was 9.5 grains of 2400 and used a .312" sized Dia. from an old Lyman mold #311008 PB 118gr at about 1600fps, nice light load and fairly accurate even with barrel being kind of rough. Good luck they are great fun to shoot, like a big 22rf, Mike


	IP Logged

svartkruttgris#369 Frequent Elocutionist Offline Posts: 2980 Location: Colorado, Norway, Sweden Joined: Oct 28^th, 2014	Re: 32-20 Rifle Load Data (Smokeless) Reply #11 - May 9^th, 2017 at 10:17pm	Print Post
	Here is another vote for IMR4227, 10,0 to 13,0 grains under 120 gr Lyman or Saeco bullets in my rifles. I also like 8,-8,5 gr IMR4759 for a standard pressure rifle load or up to 9,5gr for 1400fps or so. I seat bullets out to touch rifling and only neck size cases. I avoid "shotgun and pistol" powders -- never gave me as small groups at 100 yds as above rifle powders. Would try 4198, RX7, etc. but I have lots of 4227 and 4759 and they perform as well as I can use.


	IP Logged

oneatatime Frequent Elocutionist Offline Posts: 4494 Location: Rocky Mountains Joined: Oct 30^th, 2011	Re: 32-20 Rifle Load Data (Smokeless) Reply #12 - May 10^th, 2017 at 12:43am	Print Post
	In my 2 rifles I have used a Hensley & Gibbs #65 with 8 grains of 2400 and with 311316 3.4 grains of Tite Group or 4 grains of Unique. Best in both has been 311316 with 5.2 to 5.4 grains of AA5.


	IP Logged

Page Index Toggle

Pages: 1

‹ Previous Topic | Next Topic ›

« Board Index ‹ Board Top

Top

ASSRA Forum » Powered by YaBB 2.6.12!
YaBB Forum Software © 2000-2026. All Rights Reserved.

Valid XHTML

Valid CSS

Powered by Perl

Source Forge

Page completed in 1.2534 seconds.