Loaded spme Xtp 180 10mm

[willie91k]

ran some xtp 180 gr bullets with 8.8 gr. of longshot at 1.250 threw the crono  four shot group Avg. was 1260
9.0 four shot Avg. was 1290.5  does that sound about right to you guys ?   RIA 10mm  5" ultra HC
also ran four Armscor factory 10mm Avg. 1195
Freedom factory Avg. 1054

               Thanks willie

[tommac919]

Sounds good to me... enjoy

IIRC, max for 180 sits around 9.5, which is about 1300 in a G20 ( 4.6" )

[The_Shadow]

Well several things come to mind here for the readings being shown; RIA may have tighter bore providing more sealing for the pressure yielding higher velocity.  Are these all hand weighed and verified? or Dropped from powder hopper?  Longshot can and does vary somewhat as dropped.  What primers Standard? Magnum?

Chrono may be generous with its readings.

What elevation? (higher elevation less air resistance) and lower humidity can provide better velocities.

Not doubting your info or trying to pick on you here...All things are relitive as it pertains to ammo performance.

[RDub01]

Hello
9.0grs of LS with that bullet is just about right.  Solid load.
The Armscor velocity is just what I got with that load out of my G20-SF. 
Not familiar with the other one.

[Graybeard]

I've only recently started to develop loads with Longshot. 9.2-9.4gr with a 180gr RMR FMJ got me a six shot average of 1320fps out of my Kimber TLE II recently. I'd say that was right in line with your results.

I loaded up some Zero bullets 180gr JHPs to run over my chronograph next week. Individually weighed charges this time and adjusted coal to make the internal case capacity match an XTP. Zeros are shorter. I'll post the results.

[Kenk]

Yep, need to work up some Longshot loads myself

[slayer61]

9.0 of Longshot and a 180 projectile is my 10mm "GOTO" load.

[willie91k]

Thanks guys just want to make sure I'm close

                   willie