Shooting Resized 12.5 Grn NSA slugs at 200 yds. My Avenger's barrel slugs out @ .172 - I've heard from one other Avenger owner who's barrel also slugs out at .172. The gun will shoot unsized 12.5 grn NSA slugs if the Reg is bumped up to 22-2300 and a healthy dose of hammer spring is applied but my rifle would start hanging slugs in the barrel once rifle pressure started dropping to about 3000 psi. Accuracy was not great either. My rifle would not shoot the 15 grn NSA slugs. The NSA slugs are sized at .178. 6 thousandths of OVERBORE diameter is too much for the rifle to over come with the added length of the 15 grn'rs. The Rifle shoots the resized 12.5 grn slugs with 2100 Reg and 2 turn of hammer spring and will continue to shoot them down to below Reg pressure. on a good weather day, the rifle has printed a 2" ten shot group at 100 yards. I will post as soon as I can get it recorded. Need to revisit the 15 grn slugs as well. Resizing appears to open the door to efficiency and accuracy with this rifle.
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200 Yard .177 Air Gun - The Littlest Avenger .177
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