It looks like my crimps are pretty consistent. I was thinking the same thing (if one doesn't roll down quite as far as the other, but still looks good).
I'm using the 250gr Deep Curl and the 275gr Barnes hollow point, so they're not sticking past the crimp. I'm shooting the Savage 220, so it's clip fed, which shouldn't matter either.
I was thinking of buying some more sabots (almost out) and getting their gas seal to try. I looked all over for a different style, but can't find anything out there. Here's what I'm using...
http://www.ballisticproducts.com/20ga-Obturator-gas-seal-250_bag/productinfo/02020/
I don't think my bore is oversized. I can't push the seal down the bore without using a ramrod and a lot of pressure. There seems to be a flaw in the design of the seal. It's hard to explain, but there is are 2 notches on opposite sides of the seal that leave the wall a little thinner in those 2 spots. That's where I'm seeing them blown out.
I don't know my velocities yet. But I'm guessing I'm abetween 1400-1500fps based on the center of my last groups. I was approx dead on at 50 and about 3-4" low at 100 yds. I want it a little faster so I can take that rare 150yd shot (very long shot where I hunt). But so far, if I push it faster, I get the irratic groups (8+ inches at 50yds). When I tried 31 grains Blue Dot, my group at 50 yds was 2+ feet and the sabot was blown apart.
Another factor I'm thinking might be an issue... I'm putting 60lbs pressure when I seat the slug. I'm going to try a few at 30lbs and see if that makes a difference.
I'm spending more money that I was planning trying to find a good load, but I'm having a lot of fun trying to figure it out (I'm liking the challenge). My guess is the seal design and seating pressure are my problems.[/url]
I'm using the 250gr Deep Curl and the 275gr Barnes hollow point, so they're not sticking past the crimp. I'm shooting the Savage 220, so it's clip fed, which shouldn't matter either.
I was thinking of buying some more sabots (almost out) and getting their gas seal to try. I looked all over for a different style, but can't find anything out there. Here's what I'm using...
http://www.ballisticproducts.com/20ga-Obturator-gas-seal-250_bag/productinfo/02020/
I don't think my bore is oversized. I can't push the seal down the bore without using a ramrod and a lot of pressure. There seems to be a flaw in the design of the seal. It's hard to explain, but there is are 2 notches on opposite sides of the seal that leave the wall a little thinner in those 2 spots. That's where I'm seeing them blown out.
I don't know my velocities yet. But I'm guessing I'm abetween 1400-1500fps based on the center of my last groups. I was approx dead on at 50 and about 3-4" low at 100 yds. I want it a little faster so I can take that rare 150yd shot (very long shot where I hunt). But so far, if I push it faster, I get the irratic groups (8+ inches at 50yds). When I tried 31 grains Blue Dot, my group at 50 yds was 2+ feet and the sabot was blown apart.
Another factor I'm thinking might be an issue... I'm putting 60lbs pressure when I seat the slug. I'm going to try a few at 30lbs and see if that makes a difference.
I'm spending more money that I was planning trying to find a good load, but I'm having a lot of fun trying to figure it out (I'm liking the challenge). My guess is the seal design and seating pressure are my problems.[/url]