Jaxshooter Posted May 18, 2010 Share Posted May 18, 2010 I am changing from True Blue to Silhouette. I have tried the search function and cannot find the info I am looking for. I will be using Montana Gold 115 gr JHPs and MG 121gr IFPs. Both guns are full size one has an AET barrel with two ports and the other has none. I need a starting load and will work up from there on my chrono. Please include powder charge and OAL. All help will be appreciated. Thanks Link to comment Share on other sites More sharing options...
hitman Posted May 18, 2010 Share Posted May 18, 2010 I run 7.7 behind a 124 JHP with WSPM, dont have my data handy so I am not sure ovl. Link to comment Share on other sites More sharing options...
SLM Posted May 18, 2010 Share Posted May 18, 2010 With the 115's I'd suggest starting at 8.0 grains at 1.175" That gets me 162 PF with NO holes. With the 121's I'd suggest starting at 7.6 grains at 1.180" That gets me 162 PF with NO holes. This is with the current shipping lot of Silhouette from Powder Valley in a regular Schuemann barrel with a bull comp. Link to comment Share on other sites More sharing options...
dr2e Posted May 18, 2010 Share Posted May 18, 2010 (edited) 7.7gn under a 124gn mg cmj, win. srp with a 1.170" oal makes a 172+pf in my 5" kkm with no holes Edited May 20, 2010 by dr2e Link to comment Share on other sites More sharing options...
CocoBolo Posted May 18, 2010 Share Posted May 18, 2010 +1 on 7.7 with 124/125gr @ 1.165. 8.4-8.6gr w/115 gr JHP @ 1.165. Both of these loads are 170+ with 4.25 shorty. Post your 121gr load back when you get it figured out. Be sure to check your dot when you switch loads I tanked two stages Sunday when mine dropped 3" shooting this load. Gave the old C-More a 1/4 turn and got back in the game. This load isn't the softest or flatest I 've tried but I like the feel of it. Link to comment Share on other sites More sharing options...
mrmetalweld57 Posted May 18, 2010 Share Posted May 18, 2010 8.5gr.silhouette, 115 jhp MG, 171pf, small rifle primer to light it up. Link to comment Share on other sites More sharing options...
smokshwn Posted May 18, 2010 Share Posted May 18, 2010 Bedell Shorty MG 121 with 7.8-8.0gr of silhouette gets me right at 170-172 pf oal is 1.17 Link to comment Share on other sites More sharing options...
matt2ace Posted May 19, 2010 Share Posted May 19, 2010 +1 to all of the above 7.7gr / 124 MGD at 1.185 OAL Link to comment Share on other sites More sharing options...
AWLAZS Posted July 27, 2010 Share Posted July 27, 2010 Is it just me or does the velocity drop 30fps when the ammo is hot from the sun. Link to comment Share on other sites More sharing options...
TwoShot Posted July 27, 2010 Share Posted July 27, 2010 (edited) Silhouette is reverse temperature sensitive. Ammo left in the sun will chrono 30-40 FPS slower in my experience. I have been using Silhouette for 2.5 years, I think some lots are worse than others! Last week I went to the range to do some chrono work. I loaded 10 rounds into a magazine and set it in the sun, chrono'ed 2-10 shot strings and recorded data. I then picked up the mag and ammo that was set out 20 minutes earlier. The mag in the sun was quite warm to the touch and the gun was warm. Same loads chrono'ed 37 fps slower than ammo and gun at 75 degrees. Edited July 27, 2010 by TwoShot Link to comment Share on other sites More sharing options...
AWLAZS Posted July 28, 2010 Share Posted July 28, 2010 I thought it was my chrono. Link to comment Share on other sites More sharing options...
PINMAN44 Posted July 28, 2010 Share Posted July 28, 2010 I guess I cant throw hand warmers on it then Link to comment Share on other sites More sharing options...
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