I saw a cut away picture of the 175gr ABLR seated at 3.34 on the "fire" and it got my wheels turning so I did a little 8th grade science experiment today. I did a side by side comparison with cut aways. Don't worry I wasn't cutting any brass that was as expensive as gold. Midway had 26 Nosler brass on sale awhile back for $40 and I purchased a pile of it. As they always say a picture is worth a thousand words. This shows seating depth comparison of 3.34" and 3.60".
I also did a water capacity test at both seating depths. The empty case weighed 270gr. At 3.34" the case weighed 359gr(89gr.net) and seated at 3.60" it weighed 364.6gr(95.6gr. net). A 5.6gr of water difference or a little less than 7%. That's about the same % increase I get with my AI cases. I don't have Q/L but I bet that would be about 100FPS difference. I think that running this cartridge with heavy for caliber bullets you'd be better off at 3.60". I'm going to run my 28 Nosler throated for 3.60" or longer.
Scott
I also did a water capacity test at both seating depths. The empty case weighed 270gr. At 3.34" the case weighed 359gr(89gr.net) and seated at 3.60" it weighed 364.6gr(95.6gr. net). A 5.6gr of water difference or a little less than 7%. That's about the same % increase I get with my AI cases. I don't have Q/L but I bet that would be about 100FPS difference. I think that running this cartridge with heavy for caliber bullets you'd be better off at 3.60". I'm going to run my 28 Nosler throated for 3.60" or longer.
Scott
