Sleeper of a gun for over 15 years Dec 25, 2019 15:20:08 GMT -5
Post by sw on Dec 25, 2019 15:20:08 GMT -5
The top gun is a nicely bed’d 10ML2 receiver with a 1.5# SSS trigger and a 26” 40 cal 16 twist PN barrel. I had sent this barrel to RB while he was working on his first 45. Actually, this
40 cal came out before the first 45. I was shooting 195Bs and 200 XTPs, later 200SSTs. These bullets were all knurled . I used a VV110/2015 duplex for up to 2800’/sec with sub-MOA accuracy.
However, it wasn’t particularly consistent. I rarely hunted with it.
I now have a 40 cal, smooth sizing die and have tried 225 AccuMaxes (4004) . I worked up a VV110/Varget load that really performed well. The very flat base of the AccuMax apparently really seals
The groups are cloverleafs at 100 yards and sub-1” (3-shot) at 200 yards. 2 1/4” hi@100, 1 1/2” @ 200 and 6” low at 300 yards. It still has 1888’-lbs of energy @ 500 yards. The 225 AccuMax is 90’/sec
Faster than the lighter 200SST (rounded base and knurled).
This gun shoots flatter than my 45 Rem/Brux for the loads I’m willing to shoot. The 40 doesn’t have a high recoil, actually less than a 300g bullet with 44-45g of VV110 but a little more than most 250g factory loads.
I believe a 40 cal retrofit barrel on a 10ML2 can virtually equal all but the hottest loads in the custom made guns.
The 40 is shooting 2945-2950’/sec vs 72g H4198/275AccuMax (Rem/Brux) at 2850’/sec. The 275/452 BC 0.300 vs 40 Cal 225 AccuMax with a BC of 0.340.
Don’t rule out a 40 where legal.
The top gun is the 40, the middle is the RB 45, and the bottom is a used Rem/Brux.
This is a chrono reading of the top gun. Incidentally , the speeds were 2941, 2943, 2943, 2949. A 1 time pass os a 416 nylon brush followed by a pass(in and out) with a small dry patch is needed to keep the velocity from climbing.