m118lr'ish quandary.

[marduk185]

i have recently started reloading for my savage 10fp. i first worked a ladder test for 175grain smk using prvi brass and cci br2 primers, and 4064 powder. i tested 41 grains up to 43 grains in .5 grain intervals,when i started blowing primers.41grains was giving me best group at a hair over .5moa and a velocity avg 2605fps. i decided i wanted to switch to m118lr brass and tested same loading resulting in avg 2638fps but closer to 1 moa. my quandary is now whether i should,
a) ladder test up to try and match m118lr factory speeds(2715 out of my rifle) with the point being to have same trajectory as factory inventory,or,
2) drop a scotch to see if i can hit that old accuracy node with the different brass at a slower speed and not use factory fare for my dope tables.(or possibly keep two sets of dope?)

anyway any thoughts are appreciated as im new to reloading.

 

[sobrbiker883]

Re: m118lr'ish quandary.

Try IMR4895.......

 

[kombayotch]

Re: m118lr'ish quandary.

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: marduk185</div><div class="ubbcode-body"> a) ladder test up to try and match m118lr factory speeds(2715 out of my rifle) with the point being to have same trajectory as factory inventory
</div></div>

If you aren't using the same powder, there is a good chance that it isn't going to match it at hotter and colder temperatures. M118LR is loaded with RL-15. If your goal is to match the military loading, you should use the same powder.

 

[Hummer]

Re: m118lr'ish quandary.

you may also have trouble if the primers are not duplicated as well.

 

[marduk185]

Re: m118lr'ish quandary.

good points gentlemen thanks for input.

 

[BHP9]

Re: m118lr'ish quandary.

The current M118LR load is 43.1gr/RL15.

I've duped this load using Norma brass and fed 210M primers.