Any Sierra 107 Match King Accuracy Loads around?

[kymountainman]

Have any of you shot the Sierra 107 grain SMK? I picked several up, and am looking to load a few to see if I can get a good coyote load going.

[VASCAR2]

My 16" Shaw 1:9 twist and Faxon 1:8 twist both like the 107 grain SMK with 28.5 grains of IMR8208XBR and CCI 450 primers in Hornady cases.

This load gave 2658 FPS out of my 20" Shilen 6.5 Grendel.

[topcaat1]

IMR 8208 29.3 grains, CCI 41 primers, Lapua brass, OAL 2.245". 2520 fps from PF 16" Neptunen type 2 upper. Easliy under 1" groups. Could probably be much better but am using an ACOG 4x scope.

[TomSawyerNW]

Hi, I have the same question for Sierra SMK 120 and 123 grain projectiles with either new Lapua or once-used Hornady brass and CCI 450 primers. I have a Les Baer set-up with a 24" heavy barrel that already accurately handles Hornady 123 gr A-MAX and SST.

[1911man]

I got two for you on that request tomsawyer out of a 264 LBC chamber. Once fired Hornady brass and CCI 450 with 120 smk.
1. 28.3 grains XBR and OAL of 2.250 runs about 2480 fps out of my BHW 1x9 twist and is 3/4 MOA accurate out to 600 for me. I stopped using this load because of the low BC of the 120 but it was a nice, accurate load.
2. 27.5 grains of TAC with the 120 SMK and 2.250 OAL. This is a legit 1/2 MOA paper puncher load. No other use for it though. Great looking groups but around 2250 fps out of my barrel.

[jeffreybehr]

KY, the Lyman Manual #50 has a half-dozen loads with this bullet. If it wouldn't be stealing, I'd publish the data.

Lyman used a 16"-barreled Alexander Arms upper for their testing. They also tested the Sierra HP85, the V-Max95, the A-Max123, and the SST129. They achieved just over 2600FPS with the 107 and Benchmark.

[TomSawyerNW]

Thanks, 1911man. I'll try those. I have the TAC already, and get some of the XBR over Xmas break. I appreciate the suggestion!

[1911man]

Thanks, 1911man. I'll try those. I have the TAC already, and get some of the XBR over Xmas break. I appreciate the suggestion!

Your welcome, obviously every barrel is different and likes different bullets but in my experience the 120 SMK is a very accurate bullet. Also I have talked to other guys who have found an accuracy node in the 27.5 grain area with TAC. I should also mention my barrel is 18".

[jeffreybehr]

KY, I include 12 loads with the 107g. MK in my spreadsheet. E-mail me at jeffreybehr(at)cox(dot)net with something like 6.5 Grendel spreadsheet in the Subject and I'll send it.

[kymountainman]

KY, I include 12 loads with the 107g. MK in my spreadsheet. E-mail me at jeffreybehr(at)cox(dot)net with something like 6.5 Grendel spreadsheet in the Subject and I'll send it.

Just got back from Early Christmas with family. Email sent. Thanks for the help.