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32-20 loads for 30" bbl (Read 6102 times)

Gard72977 Full Member Offline Posts: 201 Location: Tupelo MS Joined: Dec 18^th, 2016	32-20 loads for 30" bbl Apr 28^th, 2018 at 2:01pm	Print Post
	Just picked up a Uberti Schuetzen in 32/20. All the load data I see is for much shorter barrels. It has a 1/20 twist. I have a little concern about running out of lube in the long tube. Should I be looking at a mold that has 2 lube groves? Also wondering if a gas check bullet would be a good option. This is not for competition just 50yd shooting. Just asking for advice on powder and bullet for the longer barrel.


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calledflyer Frequent Elocutionist Offline Posts: 3970 Joined: Mar 9^th, 2015	Re: 32-20 loads for 30" bbl Reply #1 - Apr 28^th, 2018 at 2:06pm	Print Post
	Yer over thinking it. Make sure the bullet fits the bore tight.


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50target Full Member Offline Posts: 145 Location: Alabama Joined: May 27^th, 2014	Re: 32-20 loads for 30" bbl Reply #2 - Apr 28^th, 2018 at 2:25pm	Print Post
	I have a Uberti Low Wall with a 30" tube & never a problem with leading, etc. I'm going to agree that for 50yd shooting you may be over thinking. In mine 312 or 313 dia work the same. Don't have my load book but remember that Aa1680 & imr4227 gave good results. Fun little cartridge. I stick with the 115 gr bullet. Always cast. Bob


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svartkruttgris#369 Frequent Elocutionist Offline Posts: 2980 Location: Colorado, Norway, Sweden Joined: Oct 28^th, 2014	Re: 32-20 loads for 30" bbl Reply #3 - Apr 28^th, 2018 at 9:20pm	Print Post
	My best grouping loads have nearly always been with "rifle" loads using 4227 or 4759 instead of "pistol loads" using fast burning pistol and shotgun powders. Because I use 32-20s primarily for hunting, I prefer muzzle velocities or 1400fps or higher, which 4227 and 4759 do easily at totally safe pressures. My rifle has 27 inch barrel. Gas check bullets are generally among tightest grouping in my old Win LW with less than perfect bore. Hornady XTP 100gr pistol bullets have been one of tightest grouping in my sole remaining 32-20 rifle, first 3-5 bullets from cold barrel commonly stay inside 1 inch square at 100 yds. Velocities are in 1500 fps range with easy extraction. Original 32-20 Ideal 115gr bullet and Saeco's near copy (120 gr) have been excellent grouping bullets at standard 32-20 velocities of about 1200-1300 fps.


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Gard72977 Full Member Offline Posts: 201 Location: Tupelo MS Joined: Dec 18^th, 2016	Re: 32-20 loads for 30" bbl Reply #4 - Apr 28^th, 2018 at 10:18pm	Print Post
	Are the gas check just 30 cal checks?


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svartkruttgris#369 Frequent Elocutionist Offline Posts: 2980 Location: Colorado, Norway, Sweden Joined: Oct 28^th, 2014	Re: 32-20 loads for 30" bbl Reply #5 - Apr 28^th, 2018 at 10:53pm	Print Post
	Gard72977 wrote on Apr 28^th, 2018 at 10:18pm: Are the gas check just 30 cal checks? They are 0,313" or larger to start with. Ones on best grouping 32-20 bullet in my rifle are 0,316" because throat of that early Win LW has been eroded to 0,316" and has been smoothed over a few cm to 0,313" of the bore. 30 cal gas checks are too small. I buy my cast bullets from custom casters and, so far as I understand, they use gas checks of the diameter I request.


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BP Frequent Elocutionist Offline Posts: 8039 Location: Westside Joined: Aug 27^th, 2006	Re: 32-20 loads for 30" bbl Reply #6 - Apr 29^th, 2018 at 2:58am	Print Post
	svartkruttgris#369 wrote on Apr 28^th, 2018 at 10:53pm: Gard72977 wrote on Apr 28^th, 2018 at 10:18pm: Are the gas check just 30 cal checks? They are 0,313" or larger to start with. Ones on best grouping 32-20 bullet in my rifle are 0,316" because throat of that early Win LW has been eroded to 0,316" and has been smoothed over a few cm to 0,313" of the bore. 30 cal gas checks are too small. I buy my cast bullets from custom casters and, so far as I understand, they use gas checks of the diameter I request. Just curious, have you actually miked the installed gas checks to confirm their diameters?

	There are three kinds of men: The ones that learn by reading, the few who learn by observation, and the rest who have to pee on the electric fence and find out for themselves. Proud Noodlehead
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ww Full Member Offline Posts: 176 Joined: Apr 18^th, 2017	Re: 32-20 loads for 30" bbl Reply #7 - Apr 29^th, 2018 at 7:09am	Print Post
	For what it's worth Rainier makes a plated 32caliber that works well in my Marlin lever and Remington pump. I usually use the Lyman 115gr but had to try plated to see how it shoots. WW


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Win85 Participating Member Offline Posts: 36 Location: Bluegrass Joined: Mar 30^th, 2017	Re: 32-20 loads for 30" bbl Reply #8 - Apr 29^th, 2018 at 7:30am	Print Post
	If you have one, a LEE universal flaring die can be used to expand 30 cal gas checks to fit 32 cal cast bullets. If you look you will be able to tell which of the flaring inserts to use. You will need a flat piece of metal to put on top of the ram of your single stage press.


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marlinguy Frequent Elocutionist Offline Ballards may be weaker, but they sure are neater! Posts: 18053 Location: Oregon Joined: Feb 2^nd, 2009	Re: 32-20 loads for 30" bbl Reply #9 - Apr 29^th, 2018 at 9:10am	Print Post
	I'd be more concerned about bullet diameter and weight than gas checks or amount of lube. A good lube is important, but it wont run out, even if it's a single lube groove, unless that groove is too shallow. Gas checks shouldn't be necessary unless you push your velocities over 1500 fps. I shoot my .32-20's at around 1350 fps, and no leading at all, even with softer lead bullets.

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Gard72977 Full Member Offline Posts: 201 Location: Tupelo MS Joined: Dec 18^th, 2016	Re: 32-20 loads for 30" bbl Reply #10 - Apr 29^th, 2018 at 10:07am	Print Post
	Im using Accurate mold 313105c. I bought this for a Uberti 1873. Im going to order another accurate mold that is 115gr. I was worried about lube groove size. Im glad to hear that its not a problem.


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svartkruttgris#369 Frequent Elocutionist Offline Posts: 2980 Location: Colorado, Norway, Sweden Joined: Oct 28^th, 2014	Re: 32-20 loads for 30" bbl Reply #11 - Apr 29^th, 2018 at 11:50am	Print Post
	BP wrote on Apr 29^th, 2018 at 2:58am: svartkruttgris#369 wrote on Apr 28^th, 2018 at 10:53pm: Gard72977 wrote on Apr 28^th, 2018 at 10:18pm: Are the gas check just 30 cal checks? They are 0,313" or larger to start with. Ones on best grouping 32-20 bullet in my rifle are 0,316" because throat of that early Win LW has been eroded to 0,316" and has been smoothed over a few cm to 0,313" of the bore. 30 cal gas checks are too small. I buy my cast bullets from custom casters and, so far as I understand, they use gas checks of the diameter I request. Just curious, have you actually miked the installed gas checks to confirm their diameters? Of course! I use well established custom casters whose products have long been precisely as ordered. In my old rifles having correct bullet diameters is essential to getting best groups.


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Gard72977 Full Member Offline Posts: 201 Location: Tupelo MS Joined: Dec 18^th, 2016	Re: 32-20 loads for 30" bbl Reply #12 - May 11^th, 2018 at 6:27pm	Print Post
	I have a .313 sizer now. Just ordered a 2 cavity mold one PB and one GC. That way i will only have bullets from one cavity. Hoping for some good results this weekend.


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nuclearcricket Oldtimer Offline Posts: 823 Joined: Oct 15^th, 2008	Re: 32-20 loads for 30" bbl Reply #13 - May 12^th, 2018 at 9:49am	Print Post
	For what its worth, I have both the GC and PB lyman molds, on the GC bullet I use standard .30 cal gas checks and never had a problem. Sam


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svartkruttgris#369 Frequent Elocutionist Offline Posts: 2980 Location: Colorado, Norway, Sweden Joined: Oct 28^th, 2014	Re: 32-20 loads for 30" bbl Reply #14 - May 12^th, 2018 at 1:00pm	Print Post
	Sam, What does "Never had a problem." translate into in practice for you? I ask because many of us use gas checks to reduce-prevent powder gas from distorting bullet base and/or leaking past bullet base, resulting in leading. Because I often operate my 32-20, 8mm and 44-40 cast bullets at 1400-1600 fps, I routinely use gas checks sized to actual groove-to-groove diameter, especially in old rifles having eroded or otherwise oversize throats/first cm of bore. At lower muzzle velocities and with proven preforming bullets, plain base bullets often give equally good multi shot groups. Although I have never done comparison of same bullet, with and without gas checks, there seems little improvement to be expected from GC when bullet is already grouping nicely. Thanks!


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