I have shot lots of reclaimed lead for trap 16 yd practice.
Yes it dose afect the patteren, the patterens are not as good as new mag or chiled shot .
I use it only for 16 yd practice in 1 1/8 oz loads , and find it dosn't afect my scores.
I have patterened it for yardage ( I am 24.5 yd) and found the patterens are rough with lots of holes.

What are you paying for a bag ?
Reclaimed lead has not been avabily in my area for a few years
In my area lead has jumped in price to $17 + a bag .
10 of us are going to gether with a club to buy a semi load to save some $$ for the summer shooting season.
My share is 40 bags .
It still will be more than I used to spend .

Johnch