[MCNETT]

I finally got out with my 4" Stainless GP-100 and .454 7.5" SRH again.  10 shot avg 12 feet from muzzle 93 F with no wind and partly cloudy 3200ft elevation.

.357:  180gr  Cast Performance (still waiting for my BTB 185!) CCI  SP Mag primers OAL 1.575"
15.5gr H110 - 1277fps  ES - 67
16.0gr H110 - 1306fps  ES - 48
16.5gr H110 - 1344fps   ES - 39

.454 Casull:  395gr Cast Performance CCI 450 primers OAL 1.79"

23.0gr H110 - 1318fps  ES - 54
23.5gr H110 - 1346fps  ES - 29
24.0gr H110 - 1384fps  ES - 14

.454 Casull:  300XTP (MAG)  CCI 450 primers OAL 1.75"

28.0gr 2400 - 1450fps  ES - 75
30.0gr H110 - 1563fps  ES - 26
32.0gr H110 - 1656fps  ES - 49
32.8gr H110 - 1705fps  ES - 16
33.5gr H110 - 1718fps  ES - 25

260gr SP from Magtech  AVG: 1805fps  ES - 31


.45 LC from .454 SRH:  Western Nevada Bullet CO 255 SWC  CCI 350  OAL 1.6"

13.5gr 800X - 1336fps  ES - 47
8.5gr 700X   - 1076fps  ES - 44
9.3gr 700X   - 1131fps  ES - 18


.45 LC from .454 SRH:  300XTP  CCI 350 primers OAL 1.6"

22.5  H110 - 1281fps  ES - 51
24.5  H110 - 1372fps  ES - 34


Here are some loads that I have been working up over the last month or so.  Cases fell cleanly from all loads shown.  I had the first of the next shot string  of .454 loads using the 300XTP stick at 34.0gr, so I will stop there.  The .357 loads all shot excellent, next time that I am out I will try 17.0 of H110 behind that bullet, but won't be unhappy with the results that I received from 16.5gr.  I will push forward with the 395gr bullet to 24.5 and 25.0gr.  Accuracy only got better as I pushed the bullet faster!  Hope that this helps someone!
-Mike

(Edited by MCNETT at 9:19 pm on Aug. 19, 2001)

 

[Southpaw]

Mike, I think this info will help a lot of people.  It definitely helps me.  Good work and good supplemental info.  If you get time, please post on load.swap with your comments for future reference.  Again, very good. Thanks.

God bless,

 

[DOK]

Mike,

Excellent posting. It's really neat to look at data like the .454 H110 loads that follow Marshall's recommended process for finding your max. load.

I'm sure you were pleased to find  your .454 "sweet spot" of 32.8gr. H110 -- best ES and the "point of diminishing returns" being the same load. Were you able to able to judge any accuracy results to determine if the 32.8gr also represented the most accurate load?

Dan

 

[MCNETT]

I wasn't at a range where I could get serious bench rest groups, but the 300XTP over 32.8, the 395gr over 24.0 and the 255 LC over 9.2 700X seemed to shoot where I aimed it.  Serious target work will follow very soon!
-Mike

 

[DOK]

Thanks for the response and please let us know the target results. While I've not shot the 395gr. bullet, my experience with the 360gr. hard cast with 24.5gr W296 produced my most accurate load.

Dan

 

[MCNETT]

Received some CPB  335gr and 360 gr LBT bullets yesterday!  Worked some loads up from previous experience with with 335gr and 355gr loads.  I was able to chrono them today.

10 shot avg.  85F:

335gr  30.0 H110 - 1537fps   ES - 28

335gr  31.0 H110 - 1599fps  ES - 15

360gr  25.0 H110 - 1321fps  ES - 10

360gr  26.0 H110 - 1395fps  ES - 36

395gr  24.5 H110 - 1391fps  ES - 39

395gr  25.0 H110 - 1422fps ES - 49

I was able to sit down with my 32.8gr H110 and 300XTP/MAG loads and shoot 5 shot groups as well.  First group at 25yds measured 2.6" four of the five went into 1.1"!!!  

 

[Southpaw]

Mike,
Good work again.  Thanks.  This is the kind of info that's invaluable to reloaders, especially including your ES data.  One question, though? I noticed that for the 300gr XTP's your starting load is:
    '28.0gr 2400 - 1450fps  ES - 75'.
Is that a typo? Should it be H110?

God bless,

 

[MCNETT]

Actually, it is not a typo.  It was a load that I saw on the Alliant website.  I tried it along with my H110 loads just to see how it compared.  I think H110 is a superior .454 powder.  There might be a strong niche for 2400 with .45LC loads, though.
-Mike

 

[Southpaw]

Mike,
Thanks. I'm looking for some loading info for the 340gr with 2400 in the 454.  Have you done anything with that combo?

God bless,