I've been on a buckshot kick lately, and I found a load I wanted to share with everyone. This one is a standout not only because of its pattern, but also because it doesn't knock your teeth out. I've been trying a few different sizes, 000, 00, 1 buck, 2 buck, and F. In a number of different loads, 00 has been a standout size in 12 gauge in a shotcup, but not that great without. The following load looks mundane, but it flat out works. I've patterned this in a Mossberg 500 with 30" full choke barrel, same Mossberg 500 with 28" modified choke barrel, a Winchester 1897 with 30" full choke barrel, and a Mossberg 590 with 20" barrel with both Carlsons Skeet and Full choke. Full choke is providing the tightest patterns, but the skeet has really worked out well. In reality the bore of that 590 is about .734", and the choke .725", so it's really an Improved cylinder choke.
I do not have a picture of the Mossberg 500 patterns. I shot those on Monday and never thought to take pictures, plus there was some difference, more on that later. Today I shot the 1897 and 590. Weather is horrible, a sustained 27mph wind, with gusts. It was very tough to shoot, wind pushed patterns about 16" right at 50 yards. I was concerned the wind may effect patterns, but it does not seem to be the case.
The load is straight out of the Tom Roster manuals. It is listed in both the Buffered lead & bismuth, as well as the Advanced lead & bismuth. It varies in each manual, so I will list both exactly as they are. Also before anyone asks, in both manuals Tom Roster specifically states it is perfectly safe to use buckshot of an equal weight in place of lead shot. My 00 buckshot weighs right at 50gr per pellet, and I'm loading 10 pellets in stacks of 2. 492gr = 1 1/8oz
Buffered lead & bismuth manual
12ga 2 3/4" Federal Gold Medal
Federal 209A
29gr 800x
Federal 12S4
1 1/8 oz lead shot
PSB buffer
fold crimp
1390 fps
10,000 LUP
Advanced lead & bismuth manual
12ga 2 3/4" Federal Gold Medal
Federal 209a
27gr 800x
Federal 12S4
1 1/8 oz lead shot
PSB buffer
fold crimp
1370 fps
11,400 psi
First I loaded with 27gr 800x and shot that from the Mossberg 500 with 30" full choke barrel on Monday. Results were identical to what I got today. Today I backed off to 24gr. 800x is a great powder for reducing. I did not check, but I'm guessing at 24gr, velocity is in the 1250-1300 fps range. They are not light by any means, but the recoil is not unpleasant. I plan to continue to load these at 24gr. One last note about the buckshot. All of mine was cast of range scrap in a Sharpshooter mold, and water dropped into ice water. They are about .325" diameter, and test at 26 BHN. Hardness counts with shot.
The following picture is a shot from the 1897 with 30" full choke barrel at 50 yards. I fired 3 patterns with this, and all 3 are nearly cookie cutter. 100% are in a 30" circle. and 9/10 are inside a 20" circle. One of the three patterns put 10/10 inside a 20" circle.
Next I fired the Mossberg 590 with 20" barrel with skeet choke. I moved to 30 yards expecting a wider pattern. I was astounded to find that was not really the case. The first picture is at 30 yards, all 10 pellets are right about a 16" circle. The second pictures is one of the two shots I took at 50 yards. 10/10 are inside of a 30" circle. 8/10 are inside of a 20" circle, but one of those two was only 1" out. The second shot, not pictured did exactly the same, except one pellet was a flier that was out almost to the 30" circle ring. I only fired one shot with the full choke, not pictured, and it put 10/10 inside a 20" circle.
Also as an added bonus I'm fairly happy with the following load in 10 gauge. I think it can be better, I'm going to try trimming petals, plus different sizes. As it is, it already is one mean load. If you absolutely have to spank a deer or pig at 50-60 yards, then this is one way to do it. It's hard to argue with the workhorse that is the Ithaca mag-10. This one was fired with my 32" full choke barrel at 50 yards. 16/18 are inside of a 20" circle. That last two is only about 3" out. Due to the wind I hit high and right, but luckily all 18 still hit paper. This load is listed in the Tom Roster Advanced lead & bismuth manual. I used it verbatum, and with 18 pellets of 00 buck. I used a .0075" thick mylar wrap. Tom recommends .004" thick for extra volume. I did not cut the wad petals off, and found 00 buck stacks in tight 3's in the cup, then loose 3's without.
10ga 3 1/2" Remington PB hull
Federal 209a
38gr Bluedot
Remington SP10 + 2 1/2"x1 1/2" mylar wrap
2oz lead shot
PSB buffer
fold crimp
1190 fps
11,000 psi