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View Full Version : Test results on 16,12,and 10 ga.


Jeff Sweeter
03-23-2023, 02:02 PM
I just received a bunch of reloading results back from Precision.I wanted to develope a 12 ga.1 1/8 oz. Hunting load for both 2 1/2 and 2 3/4 inch shells. Also wanted to try out some 16s with American Select,and a hunting load with 572.Had a 10 gauge load tested for target shooting with Cheddite hull and primer as they are readily available,and a 2 5/8 hunting load with bismuth for a lifter I have.I still want lower pressure as my lifter is an older one with the square cut frame.I might get another load tested with some Longshot.Load #7 is for a 16 ga,and is 7/8 oz. of lead.There is quite a bit of info here so be careful not to get things mixed up.I don't recommend any of these loads,they are for your reference only. Every load the shot and powder were weighed with an RCBS digital scale.Happy Reloading,Jeff

Jeff Sweeter
03-23-2023, 02:05 PM
If these are not readable I will try to download them differently.Jeff.

Mike Koneski
03-23-2023, 02:27 PM
Jeff, they are very readable, thank you.

Jeff Sweeter
03-23-2023, 02:38 PM
I just reloaded them on my tablet individually so can relist them here if anyone has trouble reading them.Dont need to make mistakes reloading.Jeff.

keavin nelson
03-24-2023, 09:04 AM
Jeff, can read them fine, thanks

Greg Baehman
03-26-2023, 12:49 PM
My oh my, Jeff; this 12ga. load you sent in to have tested yielded some of the lowest pressures I've seen. How does this load perform in your gun?

charlie cleveland
03-26-2023, 02:03 PM
you sure have some fine loads in low pressure....that 12 ga load is just unreal....the 10 ga loads are really awesome to me....thanks for the info....charlie

Doug Schoenung
03-27-2023, 09:00 AM
Some of those loads are either very erratic or their chronograph is on the fritz.

Mike Koneski
03-27-2023, 05:02 PM
Some of those loads are either very erratic or their chronograph is on the fritz.

We usually refer to them as "quality reloads". :rotf:

Jeff Sweeter
03-27-2023, 05:45 PM
Hello guys,been busy the past few days at a local gun show in Sioux Falls,S.D.There were about 1250 tables full of guns.I know most of you are quite far away to travel this far but quite a few nice doubles there of which a few followed me home..There were a couple of the loads I had tested I wondered about.Notice the question marks at top of page.I wanted to figure out a low pressure 1 1/8 oz load with a little zip but not 1450 fps as hodgdon site lists many with longshot,and lower pressure for older guns,so just started loading lighter and shooting them in a remington 1100 to see how they acted,by recoil and how they ejected.They still ejected and flew several feet from the gun,but the gas ports are halfway up the barrel,not at the chamber where testing pressure is checked.That longshot powder must just burn so slow and keep building or maintaining constant pressure for the length of the barrel.I did contact Precision a week after I dropped of the test loads to see if they were done and they told me their chronograph was on the fritz and they had to send it off for repair.I don't think any of these loads were tested prior to getting it fixed though.Maybe a couple of them should be retested,and maybe the powder bumped up a little and tested at same time? I talked to Tom Armbrust today and will probably load a couple 2 5/8 ten gauge loads to have him test.He was going to try to join me at this gun show but couldn't get away.If I send him some loads I'll load a couple more with longshot and see how they turn out.On all the loads,I used very little wad pressure,and quite shallow crimp,except for the 2 5/8 ten gauge load I had to use considerable wad pressure and deeper crimp to get the crimp to keep from coming back open.Jeff

Mike Koneski
03-27-2023, 06:00 PM
I need to send some 2 1/2" 1 oz 12g loads to them too. Is their pressure gun fixed?

Jeff Sweeter
03-27-2023, 06:10 PM
BTW,Tom Armbrust doesn't like my theory of using a Remington 1100 for pressure testing,and I agree with him.I did have him test a load for me a couple years ago that was a little warm.It started out as a 1 3/8 ounce,2 3/4 inch bismuth load towards the higher end of velocity and pressure and I switched out the wad for one that fit better and allowed a nicer crimp.The wad swap raised the pressure over 2500 PSI.Tom called me immediately after testing them and told me don't load any more,they are darn near proof loads.Im pretty cautious about swapping components since then.This was a load from hodgdon site,with the wad being the only thing different.

Jeff Sweeter
03-27-2023, 06:14 PM
Hey Mike, I was there last week and spoke with them and they said their pressure gun was up and running again.They didn't test my loads till they got it fixed as I was told by them.Jeff

Harold Lee Pickens
03-28-2023, 07:05 AM
Thanks for sharing your load results, will put them in my reloading 3 ring binder for future reference. Dont have those powders currently, but you never know what you are gonna find.

Jeff Sweeter
03-29-2023, 05:15 PM
Hey guys, I had a visit with Tom Armbrust this afternoon and I discussed with him some of the loads I had tested.In particularly the low pressure Long Shot loads.As noted by a couple posts they were quite erratic for pressure.I don't dought any of the results I got from Precision.Toms explanation of the Long Shot loads was with that particular powder being a slow burning powder,when you possibly didn't use enough to get pressures up towards 6500 - 8000 PSI it became erratic,as noted by the test results.This is possibly why Hodgdon doesn't list any loads that are in the 1200 fps range as the pressure drops too much and is not consistent.Makes sense to me as by testing results.Im going to bump up the powder a bit on a couple of those loads and get tested again just to see what happens.Im also going to send Tom a couple more short ten loads with the new BP1044 wads.I will try to load them to compare with a tested load with the Remington SP10 wad.Jeff

Randy G Roberts
03-30-2023, 07:58 AM
Hey guys, I had a visit with Tom Armbrust this afternoon and I discussed with him some of the loads I had tested.In particularly the low pressure Long Shot loads.As noted by a couple posts they were quite erratic for pressure.I don't dought any of the results I got from Precision.Toms explanation of the Long Shot loads was with that particular powder being a slow burning powder,when you possibly didn't use enough to get pressures up towards 6500 - 8000 PSI it became erratic,as noted by the test results.This is possibly why Hodgdon doesn't list any loads that are in the 1200 fps range as the pressure drops too much and is not consistent.Makes sense to me as by testing results.Im going to bump up the powder a bit on a couple of those loads and get tested again just to see what happens.Im also going to send Tom a couple more short ten loads with the new BP1044 wads.I will try to load them to compare with a tested load with the Remington SP10 wad.Jeff

Jeff I had this same thing occur with Longshot in a 10 gauge. I was using a published recipe that called for 30 grains as I recall it with 1 1/4 oz of shot. I decided to down size the payload to 1 oz keeping the 30 grains and adding another fiber filler. The velocity was all over the place with my chronograph to the point that it was useless. Not enough pressure to make it function.

Keith Doty
04-15-2023, 02:53 PM
Jeff, I have had some very good success with Longshot in working low pressure loads up for my Damascus guns. I did have some inconsistency issues when the pressure was below about 5K but that is plenty low for the old guns. I "pirated" one of your 12 ga. loads, Thanks! Will try it soon.