Painless load development (mine)

OP
Formidilosus

Formidilosus

Super Moderator
Shoot2HuntU
Joined
Oct 22, 2014
Messages
10,073
MRC was rebarreled with an ACE 18” Tikka T3 lite contour, in 6cm.

IMG_2735.jpeg


2 rounds in the dirt to check function, then 6 different bullets with H4350. Max book powder charge, bullets seated to boat tail at neck shoulder junction and checked to make sure the projectile isn’t touching lands…

IMG_2681.jpeg


IMG_2682.jpeg


IMG_2683.jpeg


IMG_2734.jpeg


IMG_2723.jpeg


IMG_2722.jpeg



Then trued at 960 yards with the 95gr TMK at 3,000 fps.
 
OP
Formidilosus

Formidilosus

Super Moderator
Shoot2HuntU
Joined
Oct 22, 2014
Messages
10,073
Either I missed something being out of cell service past few days... or you chopped an inch off something on the back of an old 3-9... OR THATS ONE OF THE NEW GOT DAM MOFO SWFA CHICKENS?!?!

It’s a 10x SWFA HD.
 

texag10

WKR
Joined
Jul 15, 2015
Messages
415
Either I missed something being out of cell service past few days... or you chopped an inch off something on the back of an old 3-9... OR THATS ONE OF THE NEW GOT DAM MOFO SWFA CHICKENS?!?!
He's trying to distract you from the Rhodesian camo bag....

EDIT: When you got the S2H store and click on the jellyfish back, that option appears in the color menu as the page loads, then disappears....
 
Last edited:

Ragu

FNG
Joined
Feb 25, 2022
Messages
24
Shout out to this thread and the folks who provided valuable info. With this thread's help, I took on my first reloading task. Followed the process with the equipment sourced/had. Checked off a personal goal for 2024 and hope to take an elk in 2025 with this round.

300 WSM. 63.5 gr RL16. Sub MOA @ 100 and Sub MOA @ 525(shown below). Velocity of 2993. Factory Christensen Traverse chamber.

JYRN1UP.jpeg
 
Joined
Dec 30, 2014
Messages
9,678
how’d it do? Did you get any improvement over last few weeks? I was looking at harrels last night after reading this again as the CM lite isn’t exactly quick…

I haven't messed with it much beyond loading 100 rds with Leverevolution which was pleasantly fast and it shot well.

Right, wrong, or indifferent - I doubt i'll mess with h4895 and larger stick powders using the thrower for a while.
 

Mw01313

Lil-Rokslider
Joined
Oct 2, 2016
Messages
212
I decided to try 2 things at once and need some input. I am going to try the 73g eldm on deer and also try developing the load with forms process. Hornady data showed 2700 fps with BLC2 at a max of 25.2 gr. I loaded a round at 24.9gr and one at 25.3 g. These were loaded to book COAL. I am shooting them from a Mossberg that uses an AR mag. This little rifle has shot pretty well in the past and is the only bolt gun i have with a fast enough twist. Shot into the dirt and saw no pressure signs. Probably should have gone up til some signs appeared, but I loaded 10 of each charge and went to the range. Lesser charge was a pretty big group. 25.3 gr was right around 1.7. Velocities were in line with book data when I figured in the difference in barrell length. My question is, should I keep working up or switch powder? BLC2 was showing as being one of the higher velocity powders in hornady data.
 

gman82001

WKR
Joined
Sep 22, 2013
Messages
353
If no pressure signs and it’s not a highly temp stable powder I’d try a bit higher charge it’s kinda like it may like being pushed harder if the group shrank like that

I did miss you said you were at max so proceed with caution
 

Tell

FNG
Shoot2HuntU
Joined
Mar 1, 2023
Messages
79
My load isn’t shooting any better than that, and I haven’t had any problems with animals. I’d say load up a bunch, get that thing really zeroed and start practicing the hunting rifle drill.

Its not very satisfying to have that size of group when your shooting paper with your buddies, but it is satisfying to hit steel at distance from different positions when your buddies miss with more precise combos because you’ve practiced.
 

Mw01313

Lil-Rokslider
Joined
Oct 2, 2016
Messages
212
If no pressure signs and it’s not a highly temp stable powder I’d try a bit higher charge it’s kinda like it may like being pushed harder if the group shrank like that

I did miss you said you were at max so proceed with caution
My load isn’t shooting any better than that, and I haven’t had any problems with animals. I’d say load up a bunch, get that thing really zeroed and start practicing the hunting rifle drill.

Its not very satisfying to have that size of group when your shooting paper with your buddies, but it is satisfying to hit steel at distance from different positions when your buddies miss with more precise combos because you’ve practiced.
Thanks for the replies. They made me think I don't necessarily have to do one or the other. Think I'll load a few at book max and start hunting with them and slowly work up on powder charge to see what that gets me. I'm honestly doing this to make meat hunting a bit more interesting. I was pretty much taught that match bullets on game were a taboo. I want to see the results for myself. Also wanted to try a load dev. technique that may be better than the old school way I have always done it.
 

The Guide

WKR
Joined
Aug 20, 2023
Messages
904
Location
Montana
I am shooting them from a Mossberg that uses an AR mag. This little rifle has shot pretty well in the past and is the only bolt gun i have with a fast enough twist.
Sounds like you are shooting a Mossberg Patriot Patrol. Those only come in a 9 twist which isn't optimal for 70+ grain bullets. I'd suggest trying the 69 grain TMK with that barrel. Usually in stock and better suited for a 9 twist barrel.

Jay
 

Mw01313

Lil-Rokslider
Joined
Oct 2, 2016
Messages
212
It's a MVP LC. It's chambered in 5.56 and has a 1/7 twist. Should be able to spin them.
Sounds like you are shooting a Mossberg Patriot Patrol. Those only come in a 9 twist which isn't optimal for 70+ grain bullets. I'd suggest trying the 69 grain TMK with that barrel. Usually in stock and better suited for a 9 twist barrel.

Jay
 

Attachments

  • 20221029_195703.jpg
    20221029_195703.jpg
    125.8 KB · Views: 3

The Guide

WKR
Joined
Aug 20, 2023
Messages
904
Location
Montana
It's a MVP LC. It's chambered in 5.56 and has a 1/7 twist. Should be able to spin them.
You should be good to go. My experience with Mossberg rifles wasn't the best as far as accuracy. Solid 1.5 MOA rifles but never any better even with hand loads. I gifted both of those 243's to a rancher friend for truck/tractor guns. Perfect place for them as most shots taken by him are sub 200 yards.

Jay
 

Mw01313

Lil-Rokslider
Joined
Oct 2, 2016
Messages
212
You should be good to go. My experience with Mossberg rifles wasn't the best as far as accuracy. Solid 1.5 MOA rifles but never any better even with hand loads. I gifted both of those 243's to a rancher friend for truck/tractor guns. Perfect place for them as most shots taken by him are sub 200 yards.

Jay

This one has surprised me. It technically belongs to my brother. I turned my nose up at it when he traded for it. Mossberg in my opinion doesn't inspire a lot of confidence, but the little thing seems to shoot whatever we put in it. Everything except the ELDMs have been factory or bulk loaded stuff. 55g FMJ, 55g SP, 62g greentips, and 55gr tsx have all been MOA or better through it. Of course my brother has a horseshoe up his ass with stuff like that. If I'd bought it every group would look like a buckshot pattern.
 
Top