Short 10 Bismuth load
 

Got this back form Tom Armburst if anyone is interested. Not as fast or as much pressure as I had hope for, but, Unigue is pretty predictable so I can easily increase the powder charge and get what I need . Should be a good load to work off of.

since I have not had any rounds tested to date-- please entertain a question

the second column- pressure --(assuming line 4 starts with a 7 not a 9- in which case the variance is more) it looks to have a low of 7100 and a high of 8800, a 1700 psi variance- although the sheet shows 1000

it seems erratic- what max were you looking for? and how do you know where it is headed from the different starting points when you bump the charge

Nothing wrong with that load as it is. Enough pressure to prevent squib loads, enough velocity to kill game and keep patterns tight. I would not be hesitant to shoot that in a composite barrel gun either. Thanks for sharing.

The psi for line 4 is 9100 . The difference between 9200 high and low 8200 = 1000 . (EV or ES ) Shotshells are a pretty sloppy system and those are good numbers ( while not the best I have ever gotten ) for a shotshell . I am very happy with the consistency of the load. Even an ev of 1700 would be acceptable , I have seen tested Factory loads that where not that good

For me max average would be 11000 psi , for my Ithaca NID . I was hoping for something above 9000 psi and around 1200 -1250 fps .

From my experience with Unique in the past an increase of 1 grain should give an increase in pressure of about 500-800 psi ave, and put where I want to be speed wise . the only real way to tell is have it retested .

Disclaimer : Everyone should always stick to tested data and should never increase ( or change ) any load without having it retested .

Thanks mark. Nice to see someone with a worse scrawl than mine. :)

Thanks Mark for providing this data. About to sit down and load a few this week. Can you tell me what the filler wad is in your chart? Rem SP10 + what?

Here is a bismuth load I had tested by Mr. Armburst. 6260psi EV 700psi, 1177fps 15fps EV.
I am not recommending this load but just posting the results for information.

I used a 16ga overshot card from BPI #OS16 . SP-16 + OS16 in the bottom of the shot cup . Any 16ga card .030-.040 will work. Depending on the exact length of your hull or shot size you use you may need more or none at all . I tried it without the osc first and my crimp was slightly dished , added the osc and it came out nice and flat .

Mark, little of topic but, do you have a target load for your 10 NID ? Reason I ask is loads I have been using in my Parker 10 Hammer Gun recoil a bit too much in my NID 10. It weighs pound and a half less than the Parker

Thinking 1 1/8 oz and either Green Dot or Unique, Remington hulls cut down to 2 7/8 SP 10 wad with a fiber filler fold crimped.

William

William , I don,t have any 1 1/8oz loads using Green dot or Unique . Green dot should work great for that purpose .


I use a 700x load off the spread sheets that Pete has compiled for us . It is low pressure but shoots just fine . I never shoot any target loads in cold enough weather to worry about it .

I have the spreadsheet and am running the lightest Green Dot loads . Started 1 1/4 oz 27.5 GD then down to 1 1/8 oz 26 gr GD still a bit more recoil than I want. It's fine in my Parker sharp in the Ithaca, although it patterns very well,either gun.

Also have a 1 1/8 oz shot 19 gr Red Dot load for roll crimped Cheddite Hulls. Works well but really best in short cases, and rolled. RD takes so little room under the wad. Nice easy shooter though.

Going to back off on the GD down to 25 grs,

William

Some of the guys are shooting the GD load at 22 grains 1 1/8oz

Mark

That's good information,

William

i shoot 19 grs 700-x for 1 1/8th oz and 18 grs for 1 oz loads and for my crow load 1 1/4 oz with 22 grs 700-x. last load came from an old reloading book but the pressures were low.

I have shot a lot of 1 1/8 ounce loads in the short ten using 19 grains of Red Dot and 22 grains of Green Dot. Both are nice loads but they are untested loads.

pete is rite on with those loads either load is light on the shoulder and gun stock and will kill a squirl at 45 steps in a full choke gun any day of the week....charlie

Charlie

I got the Red Dot load from you and it's a good one

William

Just patterned both barrels in my Parker 10 Hammer gun with 1 1/8 oz 7 1/2 and 22.5 Green Dot. SP 10 Wad with a 1/2 inch 16 G fiber wad bottom of the shot cup.

Patterns are nearly identical to RST factory 1 1/8 oz # 8 with less recoil. Difference in the shot size is obvious but still plenty of pellets in the pattern.

No crono yet, am going to load up 25 and shoot some clays with them first

Thanks all

William

Back when I was shooting a lot of ATA trap Green Dot was the preferred powder by reloaders for their handicap loads, 3 dram 1 1/8, for it's tight patterns and lower perceived recoil. In trapshooting if you think something gives you an edge, it does. I think you will like that loading in your 10.

Finished 25 fold crimped and another dozen same load with Polywad 12 g spreader disk over the shot roll crimped .

Would like to see how fast they are have a chronograph that's a real pain to set up. If this lot breaks targets well will crono the last few shells..

William

William , which hull did you use ?

RST's Red ones, Chedditte made. When ahead and loaded 50 And filled in with 50 more using new primed unfired Cheddites cut down to 2 7/8 inch from 3 1/2 inch.

Another 25 Spreaders roll crimped from Brown RST's cut down, head stamp says "USA' so guessing they are Federals. Loaded the Spreader shells with # 9 considering am only going to use them under 20 yards. Now need to load another dozen spreader shells with 7 1/2 for Rabbits

Going to shoot a round of Clay's Sat, figured might as well give the load a full trial.

William

This is a great short ten waterfowl load. The components are readily available and come together very efficiently. I particularly like the relatively heavy (1 3/8 oz) payload. I felt confident shooting this load at ducks. Cannot say the same for some of the other lighter/weaker 10 gauge loads I have tried.

Merry Christmas!

Victor , glad the load worked well for you . I really like it myself . Has worked well for ducks with #4 & 5 and used it for geese last year with #1 .

Mark I tried loading your tested recipe for 1 3/8 ounce bismuth you posted here. I wonder if there are significant differences between Remington hulls. With 24 grains of Unique and the SP-10 wad in the dark green Remington hull there was no way I could use a fold crimp, a roll crimp is necessary for that load.

Pete , The Rem hulls I used for that load where purchased new and cut to length . Don't remember where I bought them , maybe Precision Reloading .

What color are the hulls you are using , dark green or metallic green ?

I know in 16ga Green Rems the base wad height between Steel shot hulls and Lead shot hulls is different .

Also the only filler used in that load is "1" .030 16ga osc in the cup.

I found an olive drap Remington hull with a black brass head, your load fold crimped fine with that hull. The metallic or forest green hull requires a roll crimp. I bought the metallic/forest green hulls unfired and primed from either Precision Reloading or Ballistic Products 5+ years ago. I am not concerned, I shot one forest green roll crimp I loaded the other day with 24gr Unique and the recoil, boom, and fired primer were all normal. Thanks for sharing your testing information.

Glad you got it worked out.